Finn, Swedes, Norwegians.

I love Filipinos, but it’s not them. :-)

If you’re from a tradition that values the prayers of your faith community after your death, then your priest or clergyperson can advise you on how your tradition respectfully treats the bodies of members.

Chances are, though, that in Japan the default is cremation. Unless you have a preference, your wife or survivors will figure out what seems a respectful place to keep your ashes.

A suggestion: If you’re not a person of faith, or if you don’t expect a memorial service, then don’t make fanciful requests like “Scatter my ashes in the ocean” or whatever. If you’ve ever taken a charter boat out past the three-mile limit, to anticlimactically drop Dad’s urn in the ocean (Blork! done.) then it’s hard to communicate what a waste of time it is.