Shangrila, Anti-Aircraft Ridge Loop Trail

EASY 143 reviews

Shangrila, Anti-Aircraft Ridge Loop Trail is a 2.8 mile moderately trafficked loop trail located near Issaquah, Washington that features a waterfall and is good for all skill levels. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

2.8 miles
508 feet

dogs on leash

kid friendly



horseback riding

nature trips

trail running





wild flowers


Located in the "Issaquah Alps," Cougar Mountain showcases a variety of natural features from forests and waterfalls to meadows and cliffs. Sweeping vistas of the Cascades, Lake Sammamish, and Bellevue, Seattle and beyond can found at different points throughout the park. Rather than a single "anti-aircraft" trail, there is a group of trails and loop options that begin at the Anti-Aircraft peak trailhead, including ant-aircraft ridge.

2 months ago

Really good hike. Kid friendly and good balance is sun and shade.

4 months ago

Great view of Lake Sammamish from the view point right off the parking lot.

When the trail merges into the Talus construction, make sure to use your map and GPS location so you don’t miss where the trail is. We took a bit of a detour after missing the trail within the construction site.
Speaking of construction, we ran into "Trail Closed" sign leaning against the ridge side of the trail, ignored it, and kept walking. After snaking through the yet-to-start Talus construction area, the trail entered into the forest again via a jump-over stumps clearly indicating a swampy area. It was in early September so there was no water. But, I suspect a puddle-swamp area forms during rainy seasons. After walking over the stumps into the forest, the trail turned into a goat-trail and we ran into another ran-over "Trail Closed" sign. it was almost half-way for the ~3.5mi loop, and that time we decided to turn back. I don't know if the return path (the north-east side) is open. Something to find out the next time I am there by walking in the opposite direction, starting on the "left" (north) off the parking lot, probably veering right to the "No Name" or the previous "Surprise Creek" first.

6 months ago

Wonderful hike that’s got a decent amount of flora and fauna to enjoy. Not many views from the loop however.

8 months ago

Easy hike. We took whole family, kids and family members of all ages. Views are of forest and trees thought we might see a bit more of the area. We did stick to main loop. Maybe next time we will go off main trail to see if views change.

9 months ago

A very nice easy trail system that is nicely marked. It's a nice area and will definitely keep going back.

10 months ago

Good running trail as the elevation gain is minimal for a hike but not a whole lot to see on the way. Moderate but persistent grade; there is more interesting terrain on the Anti-aircraft ridge trail and some cool logs you can jump over on your way up or down the mountain. There’s an okay view at the beginning of the trailhead of Lake Sammamish but there’s not much space to enjoy it.

11 months ago

Well marked, relatively easy hike. Moderate traffic, saw about 15 people.

Sunday, December 03, 2017

Great for the family or by yourself. Good views and leisurely hike. Make it more of a challenge by running it.

Sunday, October 29, 2017

Well marked. Mostly flat.

Monday, July 17, 2017

Very well maintained and signposted trails, but doublecheck your maps at each one. We had three on us and still made a wrong turn to add a mile. Great for kids and older folks, nothing too challenging.

Sunday, June 11, 2017

Nice easy hike for young kids. Convenient to Seattle and Eastside. Easy to find and ample parking.

Monday, May 29, 2017

View is so so

Sunday, April 30, 2017

Really great trail for people with kids who hate to " hike" this route is more of a nature hike

Thursday, April 20, 2017

Great trail, a little muddy but great

Monday, April 10, 2017

4/9/2017 (Sunday) - The trails are in good condition.

Monday, July 04, 2016

nice trail

Saturday, July 02, 2016

Well kept, well marked. Clean. Easy. 3 miles in about 1 hour.

Sunday, June 26, 2016

The trail is closed just after the bear ridge turn off. Was a bit disappointed, but made the best of it.

Monday, May 30, 2016

nice mild hike. Lots of path options

Sunday, May 22, 2016

This is a really pretty walk but as expected, still a little muddy. We took the trail as far as we could before having to double back to the 'No name' trail. We eventually met up with the 'Surprise creek' trail and back to Shangrila. For the first 'hike' of the year, it kicked my butt. As a 240lb guy, the uphill from the park boundary up to the 'No-name trail' was the most severe incline. Probably a nice, mellow walk in June/July.

Thursday, June 11, 2015

Well marked trails did the AA loop about three miles. Good workout!

Wednesday, June 10, 2015

nice fast and flowy for all you runners out there, but easy grade that is really made for walking not hiking. Nothing too technical, but beautiful forest to enjoy on the fly.
And the drive in is straight bonkers and worth the trip alone.
short trails that connect make for a good day training.

Saturday, May 30, 2015

So so

trail running
Monday, January 26, 2015

Went on my first trail run here. The trails are a little muddy right now, but otherwise well maintained. This trail head has a nice parking area, and on a clear day, views of the water.

Sunday, November 16, 2014

lots of fun trails that lead into each other.. well maintained trails

Monday, August 11, 2014

This is a pretty easy trail. Grab a map at the trail head, it'll help you choose which trails you want to take and how to get back out. Good for trail running, dog friendly, as well as kid friendly. Well maintained and very little water flow during this time of year.

Monday, August 04, 2014

Not too many people. Lots of different trails to choose from. Good beginners hike. The only good view that I could find was right in front of the parking lot where the picnic area is.

Monday, June 09, 2014

Very easy hike and close to city. Quite a few narrow one person paths.

Saturday, November 16, 2013

Our third visit to CMRWP, and we're no less enamored of the park than before. Big rains overnight, and really, only a couple of spots on Shangri La west of the trailhead were tenuous. Still lovely - sad that folks are "bored" by the area - and we'll continue to explore this nice, close-in venue. The others we encounter are always friendly, and understand 'sharing' the trail.

Monday, September 09, 2013

Is a pleasant hike. Not much to speak of during the hike, a tad boring and unchallenging for myself, but the view at the top is spectacular. I enjoyed the historical stuff at the top as well. Probably a good trail for families, those who are out of shape, or looking for a relaxed walk up a mountain, but nothing to challenge your self with.

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