We only know 5 out of 10 of WSR's games so far: golf, table tennis, pon farr, dog fetch, and jet skiiiiing. Here's a thread for guessing the rest.
Volleyball: remote controls both hands permanently in the 'bump position'. Raise it over the head and the Mii's hands go into the 'set' position. I have no idea how blocking at the net would work since it would require the same motion, but hopefully M+ will make this game possible eventually.
River rafting and swimsuit modeling (Wii Cheer controls with Everybody Votes Channel connectivity) would fit the resort theme.
Marco Polo (Endless Ocean controls): rumble pak could buzz the 'it' person when they've swam to the edge of the pool, and the remote speaker could emit ever louder splash noises when they've almost tagged someone. Naturally the game will include a real cloth blindfold.
A full casino is a must. You've got to get soccer moms on staycation hooked on Wii somehow