Hey AJ. I just got back to the states from Quepos. It's been rainy and the near shore sites have been vised out due to the rain and fairly heavy waves and tides from the full moon. The offshore sites and Cano Island are still good dive options though. Depending on when you get there, the conditions on the inshore sites may have improved. The recent storm system moving through has wrecked it for operators all over the Pacific coast for the last several days. The forecast as of yesterday, 06/09, was for improving conditions after Sunday.
Rexman probably went diving with Costa Rica Adventure Divers and he is correct, they are based in Drake Bay. They actually had no facilities in Quepos/Manuel Antonio. All rental gear and tanks came from San Jose when they had divers wishing to charter in the area. The boats used would be sportfishing boats chartered for that trip. This setup had obvious logistical problems and was hugely expensive. The boats chartered sometimes had very little knowledge of dive ops as well, not a good thing from either perspective of safety or good service to clients. I know because I tried to dive with them a few years ago before establishing our business there. BTW, we are Oceans Unlimited.
We work with CRAD now, mainly through referrals of folks wishing to dive Cano Island or in MA. We have even arranged transfers to them, at Cano, of divers wishing to spend a few days down there. We take them to Cano in the boat, they dive with us there, then we meet up with a CRAD folks at the island during lunch for the guest handoff. This is one of those times when the boat trip is much faster than going to Drake by vehicle (1 3/4 hour vs 6 hours, over some pretty nasty roads). What would have been a travel day turns in to a dive day and ends at the intended destination.
As far as must do's in MA, take your pick. The canopy tours are excellent. I took my 8 year old on one and he raved about it. They have different levels of tour depending on the guest, from mild to advanced. White water rafting is always thrilling, especially in the green season. The ATV tours in the area are also great. If you go to Manuel Antonio Park, consider doing so with one of the guides. These guys spot things us mere mortals would never see. There are about a hundred other things to do as well, boredom is not an option. One of the great things about the area is if we can't dive for some reason, there's always something to do, and we can make recommendations and tour arrangements right then.
Look us up when you get down. We are located on the road from Quepos to Manuel Antonio, next to Rios Tropicales Rafting the phone #is 777-3171.