I made this kayak last summer, but I have just recently joined Instructables. This will be my first time doing this so bear with me if my instructions aren't perfect. I really enjoyed making this and I also enjoyed riding it. It turned out to be quite stable, enough that I could stand in it and not have it flip. I made this kayak out of PVC pipe, duct tape, and garbage bags. The kayak is close to the water but I didn't have problems with water coming into it. The kayak looks kind of flat at the front because I wrapped it up too tightly and the front got squished. That means that your kayak could end up looking a lot better than mine. The kayak still worked perfectly. I just used paddles I had from a rubber raft and they worked fine until half of it broke and we couldn't find it. Sadly I didn't take many pictures so this instructable will be lacking pictures.
For this project you will need:
-5 pieces of 10' 1'' PVC (it can be a different size then 1'' but if you do it to much bigger it could be hard to bend)
-PVC pipe cutters
-4 elbow connectors
-12 T connectors
-Some garbage bags
-piece of wood (for seat, you could use other stuff too)
-And lots of duct tape (I used around 7 rolls, but you might need more or less depending on how you wrap it. 3 of those 7 rolls were gorilla tape to make sure it was strong but you could probably use normal duct tape).
During this instructable I will tell you better ways to make your kayak than I made mine since I didn't have much of a plan while I was making it.