While the James River Batteau Festival faithful don their period-style attire and hop into wooden boats, members of the decidedly more forward thinking Vector Space are set to juxtapose some cutting edge tech. The high-schoolers have built the BOTteau, an autonomous watercraft that can navigate the rocky James all the way to Richmond... or so they hope. They’ll launch their innovative craft alongside about 20 decidedly retro batteau, which are scaled down wood replicas of 19th-century river-borne freight carriers. The 33rd Batteau Festival departs from Percival's Island (1600 Concord Tpk.) at 11 a.m. There should be vendors of period goods and food trucks at the site for the sendoff. The eight-day batteau trip includes camping at several spots unavailable any other time of year, and plastic boaters are welcome to float along. Camping is $6 per night or $26 for the whole week. Click here for more info.