Little French Key - never been, looking for reviews

We will be going to Roatan in about 3.5 weeks on RCCL.

We were originally looking at doing a tour through Victors Bodden with a partial beach day and his Monkey Business stop but have been reading more about LFK and now thinking of booking the day there.

We will be traveling with our 3yo and will be stopping at Costa Maya and Cozumel. We plan on doing the Lost Kingdom at Costa Maya and XCaret in Cozumel. Im thinking LFK would be a nice down day to just relax and enjoy the beach but was looking for more information about it from those who have been there.

Is it appropriate for a 3yo? He LOVES the water and I know would love the paddle boards and kayaks but I want to make sure its not overly 'adult-ish'.

How is the transportation, is it an easy ride to/from port? Does staff do well with children? The food looks good to us - but do they have options for little ones? He's very plain when it comes to food; buttered noodles, tortilla chips, hotdog (no bun, no condiments), plain pizza, etc. How are the restrooms, clean? Any place to shower off?