Hi-- we are currently on Koh Samui and thinking of taking a snorkel trip up to Koh Tao one day. Does anyone have suggestions on the best tour/boat companies to do this sort of thing? We have read lots of reviews on TripAdvisor about trips to Angthong National Park from Koh Samui and boats being overly full and some questionable tour companies, but haven't seen much about trips to Koh Tao. We are hoping to book something in the next day or two so any recommendations/insight would be greatly appreciated. Thank you!