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ACES Academy offers a nine-hole disc golf course on campus that is free to the public. Disc golf is played like “ball golf” except you throw a special disc. Holes are replaced by baskets and chains. The course is well marked and rules and information on how to play are posted at the entrance, which is located in the front parking lot of the school. Discs can be purchased at Direct Skate Shop in Alpena.
El Cajon Bay Underwater Sinkhole
GPS: 45.08629, -83.31786,
Karst geology features are prominent in and around the El Cajon Bay of Lake Huron. Earth cracks are common around the bedrock north and west rim of the bay. A large sinkhole in the bay is the outlet of an underground stream. Water discharge from the outlet empties into Lake Huron and, due to the constant flow and warmer temperature of water, the sinkhole never freezes over. When water levels in Lake Huron are high, the El Cajon sinkhole is submerged, but still visible on aerial photos. During low water levels like recent years, one can walk up to the edge of the sinkhole. The sinkhole discharge water has a different chemical composition than surface water of the bay and has a noticeable sulfur-like aroma. The property has excellent examples of untouched northern ferns and is a stronghold for the State’s wildflower, the Dwarf Lake Iris, which blooms in mid-May.
More information is available at the Alpena Visitor Welcome Center located at 420 N. Second Ave, Alpena, MI 49707