I am trying to find out some info. on Sea Grape Beach. You guys have helped me out so much so, I'm hoping someone can lead me in the right direction

How far is Sea Grape Beach from the port? Will a taxi be available to take us there? Can you rent chairs/umbrellas? Snorkle rental? Any food/drink spots? Sorry for all the questions but, if it will be cheaper to go on our own then, we may just do that. The excursion through Carnival is I think $30/person.