United States » Apopka Blue Sink

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Rated 3/5 stars (355 ratings)

Overview Location & Specifics Conditions Resources Nearby Systems  
Portions of the following information were taken from the Cambrian Foundation

Apopka Blue Sink lies in the forest on the outskirts of the City of Apopka, about 12 miles northwest of Orlando. As is the unfortunate case for many sinkholes, this karst window has become the repository for litter, trash, and other waste. Thanks to The Cambrian Foundation for removing the debris from the bottom of the sink. Garbage removed included a burned sofa, Christmas trees, a car engine block, bottles, fencing, etc.

Apopka Blue Sink is home to a species of aquatic cave crayfish known only to this system, the Orlando spider cave crayfish (Troglocambarus sp.). Given the rare species that rely on these habitats for survival, maintaining these karst environments free of litter and external debris is critical to their success.
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Latitude: 28.75168
Longitude: -81.52081
Coordinate System:
Maximum Depth: 110'
 Cave Diving
 Cavern Diving
 Open Water Diving
Date Submitter Visbility Remarks
7/19/2021 Josh 2-5 Visited in 2019 to check if reports of being filled in were true, found nothing but a great depression at the GPS marker that looked like it could have been a filled-in Apopka Blue. Returned today after the last post saying it was not filled in, all I will say is that it is indeed NOT filled in, the GPS marker is incorrect. Extreme thunderstorm prevented any recon but I could see beautiful blue water going under the large limestone overhang.
6/30/2021 Andrew None The hole is in fact not filled in
4/7/2021 PJ 0 Totally filled in and no longer exists. Proof: https://youtu.be/17gFkslpztA https://youtu.be/-hXao2OIIp0
8/23/2017 Matt None Went to check out the hole today... completely filled in. Disappointed to say the least.
8/23/2017 Matt None Went to check out the hole today... completely filled in. Disappointed to say the least.
6/17/2015 Justin 50 ft Both the upstream and downstream sections are filled in with debris and sand. Sidemount might be possible downstream, but still very tight.
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Description Type Date Author Remarks
 Home Page Web Site
 System Map Map 1997 Andy Pitkin
 System Map #2 Map 1994 Dean Derk
 System Map #3 Map 1982 Bill Oigarden
Sslect Search Radius:
System Depth Cave Cavern OW Last Report Distance (mi)
 Overview Information Available for Rock Springs  Rock Springs 25 True False False 1/28/2011 1.2
 Overview Information Available for Sanlando Spring  Sanlando Spring 45 True True False 8.8