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  1. The Official Travel Resource for Ocean City, MD

  2. How underwater and deep-sea tourism became so popular - BBC

  3. Tourism is damaging the ocean. Here’s what we can do to …

  4. Trends in ocean and coastal tourism: the end of the last frontier?

  5. Tourism and Recreation - National Oceanic and Atmospheric …

  6. Blue Tourism Tools - Ocean Tourism

  7. Tourism on the Oceans | Encyclopedia.com

  8. TACSO - Tourism Action Coalition for a Sustainable Ocean

  9. Ocean Tourism Resources Portal