What a fabulous place! This was our 2nd time in Akumal but our first at La Sirena and we will definitely be back. The grounds are gorgeous, the pool is beautiful, and you simply cannot beat the snorkeling on-site (bring water shoes as it's a rocky entry). Despite the many daytrips we planned, we hardly left the lounge chairs on the sargasso-free (!!) beach (except to grab excellent coffee and breakfast at Jungle Cafe just a short walk down the street). This was truly one of our most relaxing vacations - we can't wait to return.