Join Bike Tri-Cities, together with Manhattan Project National Historical Park and the REACH Museum for an interpretive bike ride along the Columbia River from Leslie Groves Park to the REACH Museum. Participants will join National Park Service Rangers and REACH Museum staff on a 17-mile round trip ride from Leslie Groves Park along the Sacajawea Heritage Trail, on city streets through the Richland Parkway, and then continuing along the river to the REACH museum. There will be two stops along the route for presentations on the way to the REACH Museum. At the REACH Museum, participants will have the opportunity to enjoy hands-on activities, attend programs about the Manhattan Project and local plants and animals, and explore indoor museum exhibits. This event is FREE for registered participants. Bike Tri-Cities paid for museum admission for registrants. Pre-registration is REQUIRED to participate in this event. Event registration opens on May 4th and closes on June 11th at 6 pm. "Walk up" participation is not allowed. The bike ride will arrive at the REACH Museum by approximately 10:15 am. Participants will have one hour at the REACH Museum. At 11:15 pm, participants will have the option to ride back to the start of the route with the rangers or return to Leslie Groves Park on their own at any time. Transportation back to the starting point will not be provided. At check-in, participants will be given tickets to the REACH Museum good for the entire day. Registration Participants can register and manage their registration on the Bike Tri-Cities website at Ride with a Ranger Registration. (Registration opens May 4th.) Each participant must register individually. If you register, and are no longer able to participate, please cancel your registration to allow others to participate. The suggested minimum age for this ride is 15 years old unless riding in a trailer or a tagalong.