There most definitely is an all inclusive with walking distance of the pier. It is called El Cid La Ceiba and it a short walk (right out of the pier to the left). I was there in September and I would recommend it. The drinks and food was great. The snorkeling is actually awesome, but the entry into the area is a bit sketchy. You can access the info at cozumelforaday.com. Let me know if you have any questions.