I would take the time to look over other people and see what they are using for the specific area. I'd probably look at the older well used items more than what appears to be off the store rack with the price tag still showing items.
I recall a guy walking into a local golf club with nickers, knee high socks, a wood argyle sweater and a nice white wool French type cap and saddle back shoes..... now this is in Florida.... I think he understood that his attire was not realistic for the local environs and made him look like a magazine ad for possible Scotland. Americans just don't use nickers....
Those now doing what your interested in doing probably have a handle on what is best to use in the local area... it sure will not be like the West Indies where just short of nude is more practical when out for a short splash in a dink or sunbird.