after your death, do you plan to be cremated or buried

ive had a lingering morbid idea for years...when i know i'm near death, go to the coast of england, southern coast, somewhere like that, get a rowing boat, row out to sea, tie something heavy on my ankles and throw myself overboard so i die in the bottom of the ocean...so it is not known how i died, when i died or where i died, just disappear....but i realize this is a unlikely plan....i will most likely have a cremation by the local council inland.