Tantallon is a relatively easy commute to DC, but has some issues that should be addressed. Before I mention negatives, I'll start with the positives. It is located in a beautiful, tranquil setting; it has an abundance of parking, and three newer floating docks.
Unfortunately it has inept management and lacks shoreside amenities. There are no restrooms, laundry facilities, or showers yet they still charge a liveaboard fee. Many of the vessels are decrepit, and many of the slipholders just as unkempt. The negatives far outweigh the positives, which is sad, because Tantallon has the potential to be a wonderful marina.