remarkable story about a Texas grandfather and his extraordinary expedition/public awareness campaign to save one of the most important living systems on our planet and certainly among the most beautiful – the coral reefs of planet Earthread more…

Mission1MillionMission v3-1Everybody knows what’s going on in the oceans and the rain forests…everybody knows what’s right yet there are millions and millions of people out there who are completely uncommitted…Get Involved… Support an environmental organization of your choice that shares our mission to protect the coral reefs…read more…




Swim For The Reef – Aquatic Sports and Expeditions was created to satisfy the real needs of all the divers who come to enjoy the magnificent Cozumel reefs of the western Caribbean Sea. We certainly believe that your experience with us will create magical memories which will last a lifetime.

Sergio Sandoval Jr. has been involved with the dive industry since he was a small child, and his family’s love of the coral reefs made him want to be a part of reef conservation programs. Now he is an instructor and a dive master, who shares the expertise learned through the years of training he received from his father, Sergio Sandoval Vizcaino, a legend in the diving community, and has realized the great opportunity to show the world the best parts of the reefs, and, through his active participation in the Coral Reef Alliance, Mexico’s National Marine Park education program, and the international science education organization, Swim For The Reef, he demonstrates the importance of the reefs to our community and the world every day.

Sergio Sandoval  says, ”I have been involved in this wonderful business since I was a little boy and have had many different kinds of experience, learning first from my greatest teacher, my father, and then diving with some of the world’s best divers like SCUBA pioneers Jean Michael Cousteau and Ramon Bravo, as well as with the many divers from around the world who have been to Cozumel to dive with my family and I over the past thirty years.”

“As I learned from my family business, our company’s vision is to make our customers happy and help to create an ecological conscience and consciousness by showing others and learning ourselves.”

All credentials of certification are welcome: PADI, NAUI, SSI, FMAS, and CMAS.

Paul Ellis is president and founder of Swim For The Reef, Inc., a U.S.A.-based, international non-profit environmental organization, whose mission is gaining knowledge about, and protection of, the coral reef systems of the world. Paul Ellis has been an active scuba diver since 1974 and a PADI Divemaster. Through his own dive mask he saw the motivation to make a positive impact on the immensely important near-shore environmental systems we know as coral reefs.

In order to raise world awareness and to help facilitate education related to these complex ocean/shore issues, Paul Ellis spent five years in training as preparation for an ultimately successful, forty-mile, 14.5-hour, open water swim across the Yucatan Channel between the island of Cozumel and the mainland city of Cancun, Mexico, which was accomplished in August of 2004.

Since the swim, Paul Ellis has become even more closely involved with the island of Cozumel and has become a permanent resident. He formed a partnership with Sergio Sandoval, Jr. in Aquatic Expeditions to serve the diving public and Swim For The Reef’s research interests by investing in the beautiful, multi-purpose, 46’ dive boat, Swordfish, as well as contributing his many years of business experience.

In addition to the dive business, Paul Ellis is active in the international education community. The State University of Quintana Roo and his foundation, Swim For The Reef, Inc., have formed a significant partnership for the purpose of inviting students from around the world to come to Cozumel and study, learn, and advocate for the importance and beauty of the coral reefs of the western Caribbean.

Paul Ellis and Sergio Sandoval Jr. invite you to “do more than breathe underwater. Dive with Aquatic Expeditions on Swordfish, and discover the difference.”

Enjoy our personalized service, offering you our experience and knowledge for the security and comfort that you and your family deserve. Let us make your rewarding underwater experience unforgettable, no matter what your scuba dive level is now, from beginner to advance. Even if you have never tried diving but always wanted to see the beauty beneath the surface, we have a very safe and easy, one-on-one, step-by-step program that will get you there quickly and safely. If you are an advanced diver, come with us to the reefs that maximize your underwater time and diving skills. All of us can enjoy the beauty of the underwater world in our own way.


Visit our DIVER SPECIALS section of this website to see the expanding list of businesses on Cozumel participating in providing special Swim For The Reef discounting.

Since the successful completion of the Cozumel to Cancun swim in 2004, the Swim For The Reef organization has been very busy in Cozumel working on the mission and objectives of the swim. We are in the final planning process of creating a Mexican non-profit corporation, which will oversee our work in building and maintaining a learning/research center, whose focus is our precious Mesoamerican coral reef system.

In full recognition of the immense importance to the world of the coral reefs, and understanding that, as people, we first take care of who and what we love, Cozumel is offering a partnership with Scuba Divers around the world. It has always been Scuba Divers who have carried the island´s message back to their home countries that the coral reefs of Cozumel are unmatched, both with our deep towering columns of coral beauty, built over millions of years, and the many breathtaking shallow sea gardens of every color. This precious resource is being threatened around the globe by many factors, most of them of human making. Cozumel has the belief that by communicating a message of hope directly to Scuba Divers and offering them a place on our island as one of us, we will accomplish several significant achievements.

First, Cozumel wants to help create more Scuba Divers. These adventurous individuals are the coral reefs best ambassadors.

Second, Cozumel is encouraging all Scuba Divers, veterans and beginners, to take action and join with many others in the education process of non divers, including makers of international public policy on ocean issues, on the many reasons why the coral reefs are indispensable to the health of the open ocean and to all of us living upon the land, everywhere on Earth.

Third, Cozumel is extending a new atmosphere to our extended family, the visiting Scuba Divers from around the world. By presenting the diver´s certification card, hundreds of island businesses, including Mexico Water Jet Ferry Service between Cozumel and the mainland, restaurants, gift shops, and other types of business will honor the Scuba Diver as a local by extending to them the same discount gratefully received by permanent residents of Cozumel.

Fourth, In order to complete the partnership agreement, Cozumel wishes the assistance of the Scuba Diver in spreading the knowledge they gain from this experience to others, either in their personal interactions and/or, by joining us on another level, and becoming members of an international organization dedicated to our common environmental goal, the protection of one of the most important living systems on our planet, and certainly among the most beautiful, the coral reefs of Planet Earth.

Come to Cozumel and Get Involved. Breathe a Different Atmosphere.

Paul Ellis and the Swim For The Reef Research Expedition have headquartered on the island of Cozumel for more than five years now and are happy to be your point of contact for whatever your needs are while on the island. Paul can be reached via email at paulhellis@yahoo.com or phone 011-52-1-987-107-9895.

Go to our DIVER SPECIALS section of this website to see the expanding list of businesses on Cozumel participating in providing special Swim For The Reef discounting..

Example: Receive a 45% discount on your TOTAL trip to or from Cozumel/Playa del Carmen on the Mexico Water Jet ferry service.