Hart of Dixie star Rachel Bilson recently took a trip to Joshua Tree National Park in California. She sported a patterned dress and a cowboy hat, fitting in with the scenery. She captioned the photo, "JOSH….OOOO…WAH," in reference to a Rachel Green line from Friends. Travel just like Rachel Bilson and book your next trip to Joshua Tree. > GET DEALS ON JOSHUA TREE HOTELS NOW! Hiking is one of the most popular activities and there are many great trails. Cottonwood Spring is an amazing trail for anyone who enjoys nature. This trail is one of the best birding trails in the park. The walk to the oasis takes just 10 minutes and it is only .1 mile long. It is also shaded by Cottonwood trees. Hike the trail to Skull Rock for a relaxing yet longer trail. This one is 1.7 miles long and takes most people between an hour and two hours to complete. This trail is a loop for those who don't enjoy seeing the same scenery twice. Keys View is among the more scenic routes in the area. Hike just a short distance (.25 miles) in about a 30-minute hike to enjoy a breathtaking scene of the San Andreas Fault, the Salton Sea and Mounts San Jacinto and San Gorgonio. Beware that though this hike is short, it does feature a steep incline. If you are planning on hiking any of these trails in the summer months, make sure to start the hike before 9 a.m., which will allow ample time to enjoy the trail before afternoon thunderstorms. It should also be noted that pets are not allowed on any of the trails in the park.