When we get a cabana we are sailing concierge and since the cabana hosts are the concierge hosts, we just tip them once at the end of the cruise. If we weren't sailing concierge & had a cabana, I would tip them at the end of the day, the amount depending on how much they did for us. There are 5 of us, and I my tip would probably range from $20 (regularly checking in on us but no extra requests) to $50 (if they did a lot, like replenish towels, bring extra sand toys or sunscreen, bring drinks, take away lunch dishes, etc). That may not seem like enough for some people but that is what I would be comfortable with. Hope this helps.