Outbound Collective logo

Thermal, California

Looking for the best hiking in Thermal? We've got you covered with the top trails, trips, hiking, backpacking, camping and more around Thermal. The detailed guides, photos, and reviews are all submitted by the Outbound community.

Top Hiking Spots in and near Thermal

  • Santa Ysabel, California

    Hiking in Santa Ysabel

    3.0
    Starting at the trailhead on Hwy 79, enter through the gate and make sure to close it behind you - the preserve is open range area for herds of cows, make sure not to disturb them when hiking. From the gate you'll see the sign with a detailed map of trails that are available for hiking. The trail...
    Read more
  • Palomar Mountain, California

    Hike to Palomar Observatory from the Palomar Observatory Campground

    5.0
    4.4 mi / 718 ft gain
    Situated in the Palomar Mountains of Cleveland National Forest, Palomar Observatory Campground offers many amenities for enjoyable camping and exploring the area.  A portion of the campsites loop has been cleared of trees with level cement pads to allow campers to set up their own telescopes.  Dr...
    Read more
  • Palomar Mountain, California

    Hike Thunder Spring and Chimney Flat Loop

    3.0
    4 mi / 900 ft gain
    Palomar Mountain is the hidden gem of San Diego. Well, not so hidden per se- but most don't know that the little climb up the mountain can transport you from the prevalent brush-filled terrain of SD to a lush, diverse forest.The great thing about Palomar is that every day you visit could be compl...
    Read more
  • Palomar Mountain, California

    Hike to French Valley

    5.0
    3.8 mi / 450 ft gain
    When it comes to Palomar Mountain State Park, most people stick to Doane Lake and Upper Doane Valley. Yet on the far right of the parking lot at Doane Pond, there is actually a trailhead that will guide you to a completely different section of the park. The Lower Doane Valley trail is, in my opti...
    Read more
  • Julian, California

    Agua Caliente Hot Spring

    5.0
    1.53 mi / 164 ft gain
    Agua Caliente Hot Spring is an out-and-back trail that takes you by a hot springs located near Julian, California.
    Read more
  • Temecula, California

    Dripping Springs Trail

    4.0
    13.68 mi / 3287 ft gain
    The trail immediately begins to climb out of the campground on a well-graded incline. The next mile contains some climbing leading to a set of switchbacks. A long strenuous climb ensues until the 3200' elevation is reached. The trail then makes an easy southward traverse to the basin before resum...
    Read more