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Grady-White's Adventure 218 21-foot walkaround cabin boat anchored near shore as a family plays on the beach

21' WALKAROUND CABIN

Adventure 218

Classic design reimagined for families who fish, play, and explore.

The Adventure 218 is the reimagined “RV for the water,” delivering go-anywhere versatility and Grady-White quality. With a wider beam for a roomier cabin and walkaround deck, it’s ideal for anglers and families who fish, play, and overnight. Modern design meets classic seaworthiness for the ultimate 21-foot walkaround experience.

54+ standard features

Grady white adventure 218 qtp4970 3500x3517

21'3"

(6.48 m) ᴡ/ᴏ ꜱᴡıᴍ ᴘʟᴀᴛꜰᴏʀᴍꜱ

Center Line Length (w/o Engines)

8'6"

(2.59 m)

Beam Amidships

300

(224 kW)

Maximum HP

Main Specifications

Beam Amidships

8'6"

(2.59 m)

Center Line Length (w/o Engines)

21'3"

(6.48 m) ᴡ/ᴏ ꜱᴡıᴍ ᴘʟᴀᴛꜰᴏʀᴍꜱ

Bridge Clearance

5'10"

(1.78 m), w/Hardtop: 7'7" (2.31 m)

Cockpit Depth

25"

(0.64 m)

Hull Draft

16"

(0.41 m)

Transom Deadrise

19 degrees

(SeaV progression)

Maximum HP

300

(224 kW)

Fuel Capacity (Standard)

100 gal.

(378.5 l)

Weight (w/o Engines)

3650 lb.

(1656 kg)

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Adventure 218

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Line drawing of Adventure 218 boat

Swim & dockside boarding platform, port

Swim & dockside boarding platform, starboard w/ladder

Swing-open backrests & walkthrough access

Swing-open backrests & walkthrough access

Reversible self-stowing seat cushion w/non-skid bottom

Reversible self-stowing seat cushion w/non-skid bottom

Horizontal rod racks

Horizontal rod racks

100-qt. insulated fish box

106-qt. insulated fish box

Deluxe companion chair

Deluxe helm chair

Flush mount electronics area

Portable head w/dedicated storage

Forward vee berth

Forward hatch

Anchor locker

Engine Options

200 Yamaha Four-Stroke

SINGLE

200 Yamaha Four-Stroke
Top Speed

39.4 MPH @ 5900 RPM

Optimum Cruise

24.5 MPH @ 4100 RPM

GPH at Optimum Cruise

7.6

MPG at Optimum Cruise

3.2

200 Yamaha Four-Stroke

SINGLE

200 Yamaha Four-Stroke
Engine Size

2.8L

Prop Size

14 1/2 x 14 Reliance SDS

Weight as Tested

5133 lb. (including persons, fuel, water, gear, engines & accessories)

Test Date08/17/2022
HardtopNo
Bow PulpitNo
Bottom PaintNo
Optimum Cruise

24.5 MPH @ 4100 RPM

RPM MPH GPH MPG
1000 4.9 0.8 6.13
1500 6.4 1.2 5.33
2000 7.6 1.9 4.0
2500 8.7 3.2 2.72
3000 10.8 4.4 2.45
3500 17.2 6.0 2.87
4000 23.5 7.3 3.22
4100 24.5 7.6 3.2
4500 28.2 9.0 3.13
5000 32.4 12.4 2.61
5500 36 16.5 2.18
5900 39.4 19.8 1.99
250 Yamaha Four-Stroke

SINGLE

250 Yamaha Four-Stroke
Top Speed

45.3 MPH @ 5900 RPM

Optimum Cruise

29.7 MPH @ 4000 RPM

GPH at Optimum Cruise

10.8

MPG at Optimum Cruise

2.8

250 Yamaha Four-Stroke

SINGLE

250 Yamaha Four-Stroke
Engine Size

4.2L

Prop Size

15 3/4 x 15 SWS II SDS

Weight as Tested

5252 lb. (including persons, fuel, water, gear, engines & accessories)

Test Date06/15/2022
HardtopNo
Bow PulpitNo
Bottom PaintNo
Optimum Cruise

29.7 MPH @ 4000 RPM

RPM MPH GPH MPG
1000 5.5 1.3 4.23
1500 7.2 2.1 3.43
2000 8.5 3.5 2.43
2500 10.0 5.0 2.0
3000 12.4 6.1 2.03
3500 25.1 7.9 3.18
4000 29.7 10.8 2.8
4500 33.8 13.4 2.52
5000 37.5 17.0 2.21
5500 41.7 20.3 2.05
5900 45.3 25.2 1.80
300 Yamaha Four-Stroke

SINGLE

300 Yamaha Four-Stroke
Top Speed

48.3 MPH @ 5900 RPM

Optimum Cruise

27.9 MPH @ 3600 RPM

GPH at Optimum Cruise

8.6

MPG at Optimum Cruise

3.24

300 Yamaha Four-Stroke

SINGLE

300 Yamaha Four-Stroke
Engine Size

4.2L

Prop Size

15 1/2 X 17 SWS II SDS

Weight as Tested

5275 lb. (including persons, fuel, water, gear, engines & accessories)

Test Date09/18/2025
HardtopNo
Bow PulpitNo
Bottom PaintNo
Optimum Cruise

27.9 MPH @ 3600 RPM

RPM MPH GPH MPG
1000 5.5 1.4 3.93
1500 7.3 2.2 3.32
2000 8.4 3.7 2.27
2500 11.2 5.3 2.11
3000 18.5 6.3 2.94
3500 26.8 8.0 3.35
3600 27.9 8.6 3.24
4000 32.1 11.2 2.87
4500 36.4 14.2 2.56
5000 40.7 17.9 2.27
5500 45.1 23.6 1.91
5900 48.3 26.5 1.82

Safety

  • Automatic bilge pump (1100 GPH) (4164 LPH)

  • Basic flotation

  • Bow rail - 316 grade stainless steel

  • Cockpit toe rails

  • Composite stringer system & transom - water impervious
  • Fire extinguisher holder

  • Nonskid fiberglass liner
  • Nonskid recessed walkaround
     

  • Self-bailing cockpit w/cockpit drains (2)

  • Stainless steel through-hull fittings
Grady-White Adventure 218, 21ft walkaround cabin bow rail.

Bow rail - 316 grade stainless steel

Grady-White Adventure 218, 21ft walkaround cabin toe rails.

Cockpit toe rails

Grady-White Freedom 415, 41ft dual console nonskid fiberglass liner.

Nonskid fiberglass liner

Grady-White Adventure 218, 21ft walkaround cabin cockpit overall.

Self-bailing cockpit w/cockpit drains (2)

Grady-White Freedom 415, 41ft dual console stainless steel through-hull fittings.

Stainless steel through-hull fittings

Cabin

  • Berth - forward vee berth

  • Door - lockable w/screen & companionway hatch

  • Forward hatch - low profile acrylic hatch w/screen

  • Head - portable with dedicated storage

  • Lighting - indirect throughout

  • Rod storage - horizontal (4)

  • Storage - under berth compartment

  • Windows - opening windows w/screens (2)

Grady-White Adventure 218, 21ft walkaround cabin vee berth.

Berth - forward vee berth

Grady-White Adventure 218, 21ft walkaround cabin door.

Door - lockable w/screen & companionway hatch

Grady-White Adventure 218, 21ft walkaround cabin hatch.

Forward hatch - low profile acrylic hatch w/screen

Grady-White Adventure 218, 21ft walkaround cabin head.

Head - portable with dedicated storage

Grady-White Adventure 218, 21ft walkaround cabin rod storage.

Rod storage - horizontal (4)

Grady-White Adventure 218, 21ft walkaround cabin storage.

Storage - under berth compartment

Grady-White Adventure 218, 21ft walkaround cabin window.

Windows - opening windows w/screens (2)

Cockpit & Deck

  • 100% hand laid SeaV² hull & deck

  • Accessory outlet - 12V (2)

  • Batteries (2) w/battery select switch (1)

  • Cleats - flush mount (pull up)

  • Cockpit bolsters

  • Cockpit lights - blue LED

  • Compass

  • Companion grab rail

  • Deck hardware - 316 grade stainless steel through-bolted
  • Drink holders - stainless steel (9)

  • Engine flush system w/hose attachment aft

  • Factory engine pre-rigging
  • Fish box - 100-qt. (94.6 l) port insulated fish box w/ob drain

  • Fish box - 106-qt. (100.3 l) starboard insulated fish box w/ob drain

  • Flush mount electronics area

  • Footrests - helm & companion

  • Hardtop w/painted aluminum frame, storage net, side mounted rod holders (4), LED spreader lights, tri-colored (red, blue, white) recessed lights (4), radar flat & outrigger plates

  • Hydraulic trim tabs w/indicator & retractor

  • International lighting

  • Rod holders (4)

  • Rod storage racks - horizontal (6)

  • Rubrail - high density PVC w/stainless steel insert

  • Seating - aft jump seats (2) w/innovative swing-open, walk-through backrests & reversible self-stowing cushions w/non-skid safety treads

  • Seating - Deluxe II horizontally & vertically adjustable helm & companion chairs (2)

  • Seating - port & starboard fish box cushions

  • Steering - hydraulic tilt

  • Steering wheel - 316 grade stainless steel w/knob

  • Stereo system w/waterproof touch screen display, AM/FM tuner & Wi-Fi & Bluetooth® connectivity; speakers - helm (2), cockpit (2)

  • Stern eyes - 316 grade stainless steel

  • Storage - aft lift out boxes (2)

  • Storage - forward anchor locker w/rode storage

  • Storage - lockable storage box

  • Swim platforms - aft port & starboard extensions w/starboard ladder

  • Washdown - pressurized raw water w/hose

  • Windshield - tempered glass

  • Windshield wiper (starboard)

Grady-White Adventure 218, 21ft walkaround cabin 100% hand laid hull.

100% hand laid SeaV² hull & deck - Adventure

Grady-White Adventure 218, 21ft walkaround cabin accessory outlet.

Accessory outlet - 12V (2)

Grady-White Adventure 218, 21ft walkaround cabin battery and select switch.

Batteries (2) w/battery select switch (1)

Grady-White Adventure 218, 21ft walkaround cabin cleats.

Cleats - flush mount (pull up)

Grady-White Adventure 218, 21ft walkaround cabin toe rails.

Cockpit bolsters

Grady-White Adventure 218, 21ft walkaround cabin cockpit lights.

Cockpit lights - blue LED

Grady-White Adventure 218, 21ft walkaround cabin compass.

Compass

Grady-White Adventure 218, 21ft walkaround cabin fire extinguisher holder.

Companion grab rail

Grady-White Freedom 415, 41ft dual console deck hardware.

Deck hardware - 316 grade stainless steel through-bolted

Grady-White Adventure 218, 21ft walkaround cabin drink holders.

Drink holders - stainless steel (9)

Grady-White Adventure 218, 21ft walkaround cabin engine flush system.

Engine flush system w/hose attachment aft

Grady-White Adventure 218, 21ft walkaround cabin port fish box.

Fish box - 100-qt. (94.6 l) port insulated fish box w/ob drain

Grady-White Adventure 218, 21ft walkaround cabin starboard fish box.

Fish box - 106-qt. (100.3 l) starboard insulated fish box w/ob drain

Grady-White Adventure 218, 21ft walkaround cabin helm.

Flush mount electronics area

Grady-White Adventure 218, 21ft walkaround cabin fire extinguisher holder.

Footrests - helm & companion

Grady-White Adventure 218, 21ft walkaround cabin hardtop rod storage.

Hardtop w/painted aluminum frame

Grady-White Adventure 218, 21ft walkaround cabin trim tabs.

Hydraulic trim tabs w/indicator & retractor

Grady-White Adventure 218, 21ft walkaround cabin rod holders.

Rod holders (4)

Grady-White Adventure 218, 21ft walkaround cabin toe rails.

Rod storage racks - horizontal (6)

Grady-White Adventure 218, 21ft walkaround cabin rubrail.

Rubrail - high density PVC w/stainless steel insert

Grady-White Adventure 218, 21ft walkaround cabin aft nonskid seat.

Seating - aft jump seats (2) w/innovative swing-open, walk-through backrests & reversible self-stowing cushions w/non-skid safety treads

Grady-White Adventure 218, 21ft walkaround cabin deluxe helm seating.

Seating - Deluxe II horizontally & vertically adjustable helm & companion chairs (2)

Grady-White Adventure 218, 21ft walkaround cabin fish box cushions.

Seating - port & starboard fish box cushions

Grady-White Adventure 218, 21ft walkaround cabin helm.

Steering wheel - 316 grade stainless steel w/knob

Grady-White Adventure 218, 21ft walkaround cabin helm.

Stereo system w/waterproof touch screen display, AM/FM tuner & Wi-Fi & Bluetooth® connectivity; speakers - helm (2), cockpit (2)

Grady-White Adventure 218, 21ft walkaround cabin trim tabs.

Stern eyes - 316 grade stainless steel

Grady-White Adventure 218, 21ft walkaround cabin aft lift out boxes.

Storage - aft lift out boxes (2)

Grady-White Adventure 218, 21ft walkaround cabin bow.

Storage - forward anchor locker w/rode storage

Grady-White Adventure 218, 21ft walkaround cabin lockable storage.

Storage - lockable storage box

Grady-White Adventure 218, 21ft walkaround cabin swim platforms.

Swim platforms - aft port & starboard extensions w/starboard ladder

Grady-White Adventure 218, 21ft walkaround cabin raw water washdown.

Washdown - pressurized raw water w/hose

Optional Features

  • Bow roller - stainless

  • CE certification package (European Conformity)
  • Cockpit freshwater shower (recessed) w/10-gallon (38 l) water tank

  • Hardtop color - underside of fiberglass hardtop (requires matching gelcoat color option)

  • Head - portable w/deck pump out

  • Hull color - Celestial Blue, Coastal Fog, Ocean Mist, or Sage Gray gelcoat

  • Livewell - 25-gallon (94.6 l) insulated raw water livewell (replaces port fish box)

  • Painted hardtop top-mounted rod holders (4)

  • Seating - foredeck cushions

  • Seating - Command Elite helm & companion chairs (2) horizontally adjustable w/deluxe cushioning & flip-up bolster

  • Ski pylon

  • Steering - Helm Master® EX w/Integrated Digital Electric Steering (does not include joystick) (only available w/F250 engine)

Canvas Options

  • Hardtop drop curtain (ivory) (requires front & side curtains)

  • Hardtop front & side curtains (ivory)

Grady-White Adventure 218, 21ft walkaround cabin bow roller.

Bow roller - stainless

Grady-White Adventure 218, 21ft walkaround cabin hardtop color.

Hardtop color - underside of fiberglass hardtop (requires matching gelcoat color option)

Grady-White Freedom 345, 34ft dual console hull colors.

Hull color - Celestial Blue, Coastal Fog, Ocean Mist, or Sage Gray gelcoat

Grady-White Adventure 218, 21ft walkaround cabin hardtop rod storage.

Painted hardtop top-mounted rod holders (4)

Grady-White Adventure 218, 21ft walkaround cabin foredeck cushions.

Seating - foredeck cushions

Grady-White Adventure 218, 21ft walkaround cabin command elite helm chairs.

Seating - Command Elite helm & companion chairs (2) horizontally adjustable w/deluxe cushioning & flip-up bolster

Grady-White Adventure 218, 21ft walkaround cabin ski pylon.

Ski pylon

Grady-White Adventure 218, 21ft walkaround cabin drop curtain.

Hardtop drop curtain (ivory) (requires front & side curtains)

Grady-White Adventure 218, 21ft walkaround cabin front and side curtains.

Hardtop front & side curtains (ivory)

<p>Boating's Randy Vance on the <i>Adventure 218</i></p>

Boating's Randy Vance on the Adventure 218

<p>Boat Show TV on the <i>Adventure 218</i></p>

Boat Show TV on the Adventure 218

<p>Introducing the <i>Adventure 218</i></p>

Introducing the Adventure 218

<p>May 2023 Grady-Whte <i>Adventure 218</i> Features and Performance Video by BoatTEST.com</p>

May 2023 Grady-Whte Adventure 218 Features and Performance Video by BoatTEST.com

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