What are some fun things 4 a teen to do in ft lauderdale?

im 15 and im im going goin 2 ft. lauderdale 4 spring break with my parents, usually when we go 2 the beach 1 of my friends, cousins, or my older brother comes along so i have something to do but its just going to be my and my parents, so i need some ideas 4 what to do there besides go 2 the beach, btw we'll b there 4 a week