Not much scarier things than the feeling of drowning.

This is how Wayne Rooney looks today [link]

Surfing is dangerous depending on how big or heavy the waves are, generally pretty safe but there is the chance of drowning or getting eaten by a shark.

you have no control, basically to much speed you loose control, to little you stuck, I need do it. fuel was almost out and it was 4km from home, drive around can take 10-15km

Avtually I have done it 2 times, once when it 2m wide water way ice brake, I hit a gas max as I could and all went good. Other in late spring 3 years ago cross a lake, ice was think but damn warm and water was 30cm, damn its hard

Difference is jet ski wont move single centimeter on ice, snow mobile can drive on the water. Many has test and it can drive 300km untill fuel is over. Lads in Norway did it.

Snow mobie is jetski right b.e ?