Dressel Divers. “Cave Diving Certification: What Does It Take?” Dressel Divers, 3 Mar. 2021, www.dresseldivers.com/blog/cave-diving-certification/.

 

5 Top Destinations for Cave Diving in the United States.” Brave Era, 3 June 2021, braveera.com/blogs/news/5-top-destinations-for-cave-diving-in-the-united-states?srsltid=AfmBOor8GB49cnCwRA1xACK-8xpej8usMK1uQitrpD1CgUgzxp64Qiw0.

 

Koox Diving. “Cave Diving Safety Tips. the 5 Golden Rules of Cave Diving.” Koox Diving, 28 Dec. 2018, www.kooxdiving.com/en/please-stop-unless-cave-trained/.

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