Remark: For us in Germany an UL is a 2 seater with 470/600kg MTOW. AFAIK those are named Light Sport Aircraft in the US/Australia. Example: https://en.wikipedia.org/wiki/Ikarus_C42
What do you use if you fly with your UL/Sports aircraft over water? As a reference I did try to find out what other pilots have used:
Some people have surrounded the world with an ultralight aircraft. A recent example here: https://flyzolo.com/ Did they have a life raft onboard? Or is an Immersion Suit/Survival Suit sufficient? Or are there even other options?
Life rafts do not seem to be to heavy, but would it possible to deploy them after ditching? Or would it just be impossible to deploy such a raft in such a case?
I have also watched a YT series "FunForLouis World Flight", they have used Immersion suits. But the flight was in a Cessna 210 and the weight was already an issue. So I assume more restrictions with an ultralight/sports plane.
Edit 2022-06-22: This YT video shows a Cirrus with parachute ditching. Pilot manages to deploy a little raft before the plane sinks. So it seems to be feasible. Related: Why did this Cirrus deploy the parachute while ditching over Pacific Ocean?
Related: But this is for "big" planes.