I've spent a month in Sayulita and at that time there was a company called Sayulita Entourage offering the same packages as this Sayulita Adventure... looks like the same company, different name. During that month they never managed to get it together for even a single dive. Always some excuse. After 3 weeks with only a single day diving out of PV (Los Arcos, Mismaloya) with a Scubaboard member that chartered his boat, I finally booked 4 days diving out of PV.
Did El Chimo with Vallarta Undersea. Diving was good, and captain took us ashore for lunch at a small fishing village on south side of bay, supposedly accessible only by boat.
Los Anegados with Vallarta Adventure. Great diving there. Unfortunately even though it is clearly stated that all divers must have a minimum of 30 logged dives, they had along a couple of newbies with less than 10 that were completely overwhelmed by the heavy surge, so for our second dive we went to the Marriettas, where it is quite dull by comparison.
Next day went to El Morrow with Vallarta Adventures again. Another great dive and this time all divers were competant for the conditions.
These 2 trips with Vallarta Adventures were on a small dive boat and were not the cattleboat/party boat that this company is better known for. It actually was quite well done, other than the 2 rookie divers they allowed to come out to an area they were not ready for. But they may have not been entirely honest about there own experience.
So with Vallarta Adventures you always get a free trip with every 2 purchased but the only one that fit into my schedule was the cattleparty boat to the Marriettas the next day. Wow, what an experience that was. An experience well worth missing to be sure. Even got an indecent propostion from my dive insta-buddy and his wife. Not enough rum on board for that one.
The problem with all these diving companies based in PV is travel time. It makes for a long 10 hour day with driving into PV, then a long boat ride out to where the diving is good out of the bay, then back again.
I'm going to be in Punta Mita for week in November and have contacted the 3 companies that are listed for Punta Mita, but only PuntaMita Adventures responded but it was just Vallarta Adventures again. We are renting a condo there, but I suspect that these 3 companies are located in a couple of the big resorts and just cater to guests there. I'm hoping to get something lined up since our condo is only a minute away from the marina there, which in turn is a short boat ride out to the good diving outside of the bay.
This will be my first time diving there in the fall, when I believe the visibility is supposed to be better in the bay. In late winter, the bay has bad vis, but it clears up and is very good at Los Anegados and El Morrow.
Not sure if this helps you in any way, but just a short report of my experiences in the area. Let us know if you even get a response from Sayulita Adventures.
Oh yeah, almost forgot. I have a relative that lives in Sayulita and has let me in on one of the towns dirty little secrets. The sewage treatment there is basically non-functional so it's raw sewage just gets dumped into the bay. They were building a new treatment plant but.... I can think of much better places that I'd rather snorkel or dive.
If you go down to the Beach of the Dead (cemetery right beside it)(short walk) it is much, much better.