Big Blue, located in Mason City, Iowa, is a freshwater dive site nestled in a 14-acre (5.7-hectare) lake formed from an old quarry. Situated in Lester Milligan Park, this site offers convenient shore access with a maximum depth of 10 meters (33 feet). While visibility varies, it can reach up to 15 meters (49 feet), making it a popular spot for divers, especially on weekends when many gather to explore its unique underwater features. The lake's warm waters and easy entry from the swimming beach make it a great location for both training and casual dives.
Underwater, divers can explore a variety of submerged attractions, including an old training platform at 4 meters (13 feet), several derelict vehicles on the lake's east side, and even a 7.6-meter (25-foot) sailboat. With no gas-powered motorboats allowed, the tranquil environment is often used by local emergency personnel for training exercises. Additionally, the park offers amenities like a shelter house, restrooms, and playground equipment, making it an ideal destination for a family-friendly day trip from nearby cities.
Unit Settings
| Terrain and Features: | Inland, Other |
|---|---|
| Entry Type: | Shore |
| Max Depth: | 10m |
| Visibility Range: | 5m - 15m |
| Experience Level: | Beginner |
| Best Gas: | 21% O2 |
Stay Tuned: Weather Information for Big Blue (Mason City) Coming Soon!
Unit Settings
Although we currently lack information on specific hazards at this location, their absence cannot be assumed. Your knowledge and experience with this dive site could greatly enhance our page – we invite you to share your insights.
