This dive site, Longmere Lake, offers a straightforward and accessible diving experience with a shallow grassy boat launch entry. Underwater navigation is simple due to its limited depth, generally staying around an average of 3 meters with a maximum of 6 meters. There is no specific history or story provided for the dive site, but it serves as a popular local spot for both recreational boating and fishing, requiring divers to always use a dive flag due to active boat and float plane traffic. Native vegetation extends out to 15 feet from the shore, providing some visual interest and potential for exploring the lake's simple topography.
The lake is known for its native vegetation, forming grassy beds up to 15 feet from the entry point, creating a habitat for various aquatic life. It is actively stocked by Alaska Fish and Game with various cold-water fish species, including Dolly Varden, Coho (Silver) Salmon, and most recently, Rainbow trout, with the last stocking in 2021. While not a marine environment, divers can observe these freshwater fish species within their natural habitat, making it a unique experience for those accustomed to ocean diving.
The best time to visit Longmere Lake would likely be during the warmer months when water temperatures are more comfortable and visibility is at its best, although visibility averages 15 feet year-round. Divers should always prioritize safety by deploying a dive flag, given the active boat and float plane traffic on the lake. This site is particularly suitable for new divers, open water training, and those looking for a relaxed, shallow freshwater dive experience. Snorkelers and freedivers will also find it enjoyable due to its clarity and minimal depth, offering a calm environment for breath-hold activities.
