You get dropped off right at the beach and can pick a spot where you can find one. You can come and go as you please on and off the boat you just have to wait for the tenders. The early excursions will get priority tenders and everyone can go over whenever they are ready and there is room. I have not tendered with Carnival in a long time but it used to be you go to an assigned area the evening prior to the private island and you get a number. You get on the tender boats as numbers are called. Everything you need is right off of the boat so there is no transportation required and the entire island is owned by Carnival/HAL so you can roam around and check it out.
This is the best stop there is so enjoy...I could spend a whole week there with no problem!