Editing Biscayne National Park (section)

===Snorkeling and diving===
Snorkeling and scuba diving on the offshore reefs are popular activities. The reefs have been the cause of many shipwrecks. A selection of wrecks have been the subjects of ranger-led snorkeling tours and have been organized as the Maritime Heritage Trail, the only underwater archaeological trail in the National Park Service system.<ref name=npsbisc20>{{cite web|title=Coral Reefs|url=http://www.nps.gov/bisc/naturescience/coralreefs.htm|work=Biscayne National Park|publisher=National Park Service|access-date=22 November 2012}}</ref>  The wrecks of the ''[[SS Arratoon Apcar|Arratoon Apcar]]'' (sank 1878), ''Erl King'' (1891), ''Alicia'' (1905), ''Lugano'' (1913) and ''Mandalay'' (1966) are on the trail together with an unknown wreck from the 1800s and the Fowey Rocks Lighthouse. The ''Alicia'', ''Erl King'' and ''Lugano'' are relatively deep wrecks, best suited for scuba dives.<ref name=npsbisc65>{{cite web|title=Maritime Heritage Trail|url=http://www.nps.gov/bisc/historyculture/maritime-heritage-trail.htm|work=Biscayne National Park|publisher=National Park Service|access-date=26 November 2012}}</ref> The ''Mandalay'' is at a shallower depth and is especially popular for snorkeling.<ref name=npsbisc55>{{cite web|title=Mandalay|url=http://www.nps.gov/bisc/historyculture/mandalay.htm|work=Biscayne National Park|publisher=National Park Service|access-date=26 November 2012}}</ref>