Explore the most popular river trails near San Diego with hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.

Pretty nice, very easy. Keep an eye out for the rattlers

Surprisingly scenic! Plus we got to hike alongside a river for awhile which was pretty awesome. Solid elevation changes, I wore my toddler in a carrier on the uphill and we admired tons of wildflowers. Really enjoyable little hike.

a nice, easy hike. good for a trail run, for sure and very pretty.

Long but easy, good for a run

Some very modest hills, but otherwise a flat walk (or run) up Penesquitos Canyon. A small waterfall at the mid point provides some scrambling opportunities as well as a place to cool your feet. A fairly easy hike, but little to no breeze in the canyon, so not a good option on hot days.

Great conditioning hike but primarily easy on the knees and interesting location with river bed on one side and up the hill are buildings .... fun surprises !

The heat was a little tough but nothing too bad.

It was way more interesting than I expected. Definitely go to the waterfall. In general it’s very flat, but the trees are very beautiful.

$3 cash to park.

trail running
1 month ago

Great trail for walking and trail run. Several trails to choose from. Small ponds and waterfall along the way. Came across several people on trail and mountain bikers. Share the path. Signs throughout path. Great workout. Will do again. Recommend if your looking to walk (not hike) and trail run.

More of a walk than a hike, but suited our needs perfectly. Quite a few other hikers and bikers but a nice wide trail and really lovely waterfall/pools at the end of the trail and some pretty bridges crossing the stream along the way. Brought the dogs on leashes and they loved it. Did see a pretty big snake slither across the path so was glad we kept the dogs on leashes at all times.

Great hike! Very easy if you walk! Lots of different routes to go which is nice for seeing different things. But I did have to PAY THREE DOLLARS IN CASH

hiking
1 month ago

Eh. I chose this trail because I wanted something easy for a first time hike with my 8 yr old. It's pretty flat and wide. The photos show areas in mission trails that are not on this particular loop trail. The Grasslands Loop trail is completely open, no shade available, and all dry. There's a pretty lake area that can be seen from this loop, but cannot be accessed unless you take a different trail. There was no respite from the sun whatsoever. It was a good place for a starter hike but we won't be doing the Grasslands Loop again.

Nice long but easy hike. Pretty views of the river along the way. Unfortunately it's tick haven right now. Also there was quite a bit of evidence of snakes on the trail. Be extra cautious with dogs and horses!

Good trail to walk. “Waterfall” wasn’t much. But overall it was nice.

mountain biking
2 months ago

Great starter trail for Mountain Biking.

its, nice place

Great Trail for beginners!!

My girlfriend and I loved this hike!!! So beautiful and peaceful.. 8 Miles!!

trail running
3 months ago

Pretty sweet lil trail super easy , easy to navigate , descent lil scenery nice lil water way in the middle

trail running
3 months ago

Its a good long flat running trail.

Definitely bring some sandals, or a towel. The waterfall and creek is very inviting after hiking an hour or two. Flat and lots of nature.

So this hike is beautiful but... the tick infestation sign at the trail head is no joke! My dog brought home 9 ticks. If you hike this trail I highly recommend staying directly on the trail and don’t let your furry friend run around in the brush at all! I love the hike but I won’t be back to this one because the ticks are terrible to deal with.

great for beginners.

Nice trail, pretty flat but a good distance. only saw a few other bicycles on the trail.

Pretty easy hike.

Great trail for beginners or someone looking for a quick escape. Easy trail to merge with surrounding trails and add a challenge.

mountain biking
3 months ago

Great ride for beginners... was my first mountain biking trail and I loved it.. gonna do this a few more times to build more confidence... went on a weekday, very few people on the trail.

Good hike that leads to a small waterfall, but a little crowded. Still worth the experience.

Lovely trail, well maintained. We did the loop today in 2hrs 22min.

- I was grateful we chose to go UP the grade, to your right from the parking lot, which meant we went DOWN the goat hill section.
- partial shade when you are down in the canyon
- lots of lizards, some wildflowers, some birds, thankfully no snakes!
- very few other folks out
- flat canyon-top 1.5-ish mile segment of the trail that backs up to the parking lots of tech offices
- although dogs are allowed, this trail is very narrow in parts, and the volume of plants with burrs and “stickers” would have me leave mine at home for this one.
- view includes houses and businesses- about 1/6 of it you feel totally “in nature”
- I echo what others have written- most photos shown (another user’s) are NOT from this trail- they are from Los Penasquitos Canyon trail.

Not a very interesting trail and crowded. Very hot. The creek was cool.

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