riding a jetski
riding the banana boat or flyfish
riding the apv to go to the mountains
go scuba diving
go island hopping and snorkeling
obviously there are so much things to do that you won't need to worry about thinking of something to do.
These are gas-guzzler high speed machines. Speed thrill at P3000/hour. That would be almost 10-day-pay for the minimum wage earner in the country gone in an hour.
Rent a jetski, preferably, a 1000 cc or over... and boot it around! 15 - 30 mins. is all you need on these things to be sore the next day.