A - Sure, as long as there's salt. Wait i mean NO WAY. B - Sure if i have a hand gliding kit, if not, NO WAY. C - Sure, I saw a man do it on tv and he did not get pulled.
I'll jump off a cliff, but chances are there's either a trampoline there, a mattress, or there's another cliff. Then I'd probably jump off that too... but if that doesn't work I might as well swear at the Prime Minister for making cliffs so safe.