This is a short and amazing snorkel trip that is well-organized and executed, and something you won't find anywhere else. The boat only goes out a few mins from the shore to where the mantas are, then you jump in the water (or climb down their ladder), and hold on to their floating boards that have lights underneath as you simply float (with pool noodles under you) and watch these majestic creatures come and feed on the plankton directly underneath you. We had just got in the water and after less than a minute the mantas started coming. And they kept circling, doing these gentle rolls with their mouths open right underneath us, to feed on the plankton. They come so close, it's truly incredible. The plethora of needle fish also feeding under the board are cute too.
I want to give Sea Quest extra credit for making everyone feel comfortable. They help you on and off the boat without rushing you, and they have team members in the water with you at all times, and they are holding on to the same boards as you for the whole time. They will help you from the boat to the board, and help you get back on the boat earlier if you wish. They also give a lovely commentary about the manta rays, can identify which ones you see by name, and can answer any questions or help you with whatever you need.
I thought we would be getting in the water in the pitch black, but that is not the case - it's almost dark but not quite when we got in the water, and there were enough lights around that is not scary jumping in.
Some tips: 1. Take the wet suit they offer - it gets a bit cold towards the end of the 45 mins you are floating out there because you're not moving at all, even though the water temperature is quite pleasant, 2. If you are prone to sea sickness, take dramamine or ginger or something - while you are floating you, are bobbing up and down constantly in the water.