#2 is The Beach Club. I don't see where that is indicated in the description for the Grand Bliss; however, it is definitely closer to the Bliss than it is the Grand Luxxe which does have access. The Grand Mayan didn't have much of a description as to what pools it had access to, so I just matched it to the pool of the same name.
The Beach Club was being built last time we were at the resort for the Grand Bliss (not to be confused with the Bliss which is a slightly upgraded Mayan Palace located between Mayan Palace buildings 10/11). It is the closest you can get to the beach from the Grand Bliss buildings, which is not close, but it looked to be very nicely done. It is between the models building and Cafe del Lago.
The Grand Mayan has a very nice pool area next to the GM check in building. It is a very diverse area with lots of nooks and seating. The Grand Mayan also has a lakeside beach area just south of the large grocery, shopping, restaurant building which fronts the large Mayan Palace pool complex.