Blackstone Marina is located on beautiful Cuckold Creek just off the Patuxent River. Centrally located in Southern Maryland we are just a short car ride away from D.C. and Baltimore and just a short boat ride away from all the Patuxent has to offer.Blackstone Marina offers a protected deep-water harbor perfect for any boat enthusiast. We have full bathrooms with showers, security cameras, WiFi, and a large, convenient parking area.