DX: I've never heard of Tenleytown before. Do you mean Tarrytown? Because Tarrytown is about an hour and a half from where I am. I don't know about Tenleytown though.
I was replying to Scottthewaterwarrior, who is listed as in living in Bethesda. Tenleytown is a neighborhood in the District of Colombia practically next to Bethesda. 2 hours north of NY isn't far away, though it would be more like 3.5 coming out of Easton. I don't see why we can't travel distances to shoot each other with water when nerfers routinely travel distances to shoot each other with foam darts. I've fought a water war in MA, NY, and NJ vs a nerf war in ME, MA, CT, NY, NJ, PA, and MD. When you filter that for major wars with double-digit participation, the water war list falls to just NJ vs major nerf wars CT, NY, NJ, PA, and MD. It's not hopeless though, even the biggest of nerf wars started small. Apocalypse, the premier East Coast nerf war routinely draws over 100 players, but the first one I attended drew 16 and it was held at Mill Creek, a park for much smaller scale fighting. Course, one problem with water warfare is that it requires a lot of space. Even Deal is too small for a big water war. The composite Goffle Brook park in Ridgewood could probably support only 12v12, and that place is 2.5 miles long from end to end.
I am totally in agreement with C-A_99 that good water warfare venues need good cover. Perhaps not the density where you can't see the enemy 5ft in front of your face, but lots of trees can suffice. I enjoy rugged terrain, though, the more challenging the more fun. More cover and space to move allows you to call more interesting tactics.