Known as the end of the Oregon Trail, The Dalles was where pioneers loaded their wagons onto rafts or barges and floated down the Columbia to the mouth of the Willamette River, then upriver to Oregon City. The Barlow Trail was constructed later to permit an overland crossing. The Dalles was also the site of Fort Dalles. Established in 1850 to protect immigrants after the Whitman massacre, it was the only military post between the Pacific Coast and Wyoming. The only building left of Fort Dalles is the Surgeon's Quarters, which has been incorporated into the Fort Dalles Museum. Fort Dalles Museum features a collection of military artifacts, household goods and old medical equipment. It is a favorite stop on The Dalles Old Town walking tour. Also on the tour is Klindt's (315 E 2nd St), which is Oregon's oldest bookstore. Established in 1870, it still has the original wood floors, and oak and plate glass display cases, as well as a selection of books well worth browsing. WonderWorks A Children's Museum (419 E 2nd) is part of the tour, and is a good place to visit if children are part of your group. The Museum has crafts, a puppeteer area, hands-on exhibits, a dress up area and a stage. Sorosis Park is a 15 acre park located high above The Dalles on the cliffs. It's worth visiting just for the view of the river, the town and the mountains, but the park also has picnic tables, a playground, rose gardens and tennis courts. Recreation in The Dalles area includes windsurfing, fishing and camping. The Dalles has a reputation for being the best place to learn windsurfing. A favorite windsurfing starting point is Celio Park, nine miles east of The Dalles. Anglers can try for walleye and sturgeon in the Columbia River. Campers can cross the river to the Washington side and visit Horsethief State Park, the site of some of the most famous pictographs along the Columbia River. The park includes Horsethief Lake, where visitors can fish, swim or picnic.