The cherry blossoms are coming! The peak is supposed to be the first week of April. Last year I shot the blossoms a little before peak and found I was the only one there at 5 am. I got some great shots of the tidal basin at night and as the sun rose. If we were to show up around 5:30 we would have about 1.5 hours before sunrise (6:54 am). We could arrange a carpool if anyone is interested.
For parking, the lot at the Tidal Basin is usually closed for the festival. There is parking along Ohio Drive or in the lots near the 14th Street Bridge. Its not a long walk to the Paddle Boats.
I called the Paddle Boat place at the Tidal Basin and they confirmed that the parking lot there will close on Wednesday (March 20) and will be closed for the duration of the Festival. So we can arrange to meet in the Ohio Drive lot.