Homemade Amphibious Boat Build

Published at : 23 Dec 2025

The second episode of the amphibious canoe build and journey across the Scottish Highlands.

This build has long been a dream of mine. My first attempt at an amphibious bike/boat was based on a SUP and a bike + trailer (see River Wye video) which worked well but it had a slow conversion time from water mode to road mode. The aim for this build was to get the conversion time down to around 5 minutes and build something strong enough to carry me across the Scottish Highlands via water and back again on land.

All Pedal Paddle episodes - https://www.youtube.com/playlist?list=PLgws2dwF_0BJBfoZ7R-I138u8dBAxuWg4

Become a channel member or join my Patreon to support the channel and get access to perks:
https://www.youtube.com/channel/UC5xVWDTiGrpzrtllqb4DHNw/join
https://www.patreon.com/benkilner

Get in touch + social media links - https://www.ben-kilner.com

A massive thank you to the sponsors of this episode:

Metals4U - stock steel and aluminium https://www.metals4u.co.uk/
Brian from Cape Falcon Kayak - for the sail plans. https://capefalconkayak.com/
Kayospruce - for the sail fabric https://www.kayospruce.com/
Axminster tools - respirator and woodworking tools https://www.axminstertools.com/

And a very special thank you to:

Euan Crowder - recumbent bike seat and frame
Julian Parker Limited - welding
Black & Stevenson Engineering Limited - machining

Chapters:

0:00 Introduction
0:24 Back wheels
1:37 Main bike frame
2:58 Axle mounts
5:13 Cross beam
6:08 Steering
6:36 Gears & chains
10:07 Pedal Paddle mechanism
11:21 Pedal Paddle arms
12:03 Front wheel
17:01 First test
17:32 Pedal Paddle feet
22:35 Sail
24:14 Rudder
25:14 Weight
25:45 Second test & press day