: May I suggest skin on frame boats?

: For example www.yostwerks.com has a lot of different free
: designs.

: They are easy to build, you can avoid the toxic stuff like
: glassfiber and epoxy, materials are usually a fair bit cheaper,
: and you will end up with a sturdy lightweight boat.

: There's also the advantage that you don't need a mold, so a class
: of 5 students can build 5 boats at the same time.

: Check it out, and think it over. :)

: http://yostwerks.com/DesignsMenuWood.html

Good idea Mathias regarding SOF.
Default kayak for Kayakfoundary would suit for a sea kayak.

I'm a tech teacher and built a chesapeake 17 hybrid with students awhile back. I did it as an on going group project and it was worked on by junior students and senior students. if I was to do it again, I would do a full stripper. Reason being that at any given time, couple of students can be working on the boat. maximum participation compared to S&G hull which didn't require much student help.