We left on the 6pm trip which was perfecccct for sunset in November. The whole out, manta rays, and back is only about a 50 minute trip; which is nice because it's a bit cool/cold in the water, tho the wetsuit tops they provide helped a ton. Our guides were Chris and Chayden and they we super chill but also very safe and clear with instructions and guidance. Chris hung out in the water and shared lots of cool facts about the manta rays while we watched 'em (they have district speckle patterns and thus the rays have been named and you can recognize em by their patterns).
An absolutely magical little Trek at sundown, we saw quite a few rays too! The boat is also super cool, it's like two big long canoes with a wooden deck between them.
An easy recommendation and great time!