When deciding on the location of your next vacation with your favorite furry friend, look no further than California. The Golden State is the most visited state in the U.S., and it is not hard to see why. Containing 13 national parks and 840 miles of coastline (quite a few of which are dog-friendly); there are plenty of opportunities for guests to get their teeth into some great activities. Take advantage the hiking trails in Joshua Tree National Park and take in some spectacular views there, or visit the pet-friendly urban metropolis that is San Francisco; which contains heaps of dog-friendly restaurants and attractions; for example the Blue and Gold Fleet Bay Cruises- an hour long cruise along the bay. When guests stay in tree-houses; they are remaining as close as possible to nature. Nestled in the trees, glampers and their canine companions can enjoy waking up to the sound of nature from their tree-top paradise. Check out of range of dog-friendly tree-houses in California now.