I do not think that there are ICE versions. But there are many different versions by now, including pump foil (just up-and-down body motion), SUP foil (with paddel), surf foil (wave), wake foil (towed behind boat, but able to let go and just surfing on the boats wave), wing foil (inflatable sail that you hold in your hand, the most popular version) and versions for kite and wind surfers. All are currently significantly cheaper than eFoil (starting around 1k compared to 5k for eFoil) but mostly more challenging, in good sense and bad sense. Some people have said that you learn how to eFoil in 30min. Then the battery is empty. But that is okay as by that time it becomes boring. Which is different to all the other foil sports (exept maybe wake) were most need ~10h to even achive small steps forward. But once you manage, basically every body of water becomes a surf spot.
