Yep, only water.
When I get back from Ecuador I'm hoping to do a longer one, but you really need to set aside the time for REST, which is easy for me because I work online, but I'm traveling a lot the next few months, and being active while water fasting is a sure fire way to guarantee muscle loss :(

I'm glad you're on the vegan path, be sure to follow me, I'll keep posting about it!