The trailhead is the Zion Lodge Shuttle stop in the main Zion canyon. During spring, summer, and fall months, the Zion shuttle is the only way to access the trailhead. If the shutte isn't running, park at the lodge.

The hike can be started at the Zion Lodge or the Grotto Trailhead that is the next shuttle stop up the road from the Zion Lodge. From Grotto Trailhead, you get the best overall scenery, can make a loop returning via Lodge Trailhead, avoid repeating terrain, and add just enough extra distance to feel like a complete, satisfying hike. Starting at the Lodge Trailhead is ideal for families with small children, hikers looking for a leisurely stroll, or anyone seeking a shorter, lower-effort option. The Grotto Trailhead to the Lodge Trailhead is by far my favorite way to do the hike.

From Grotto Trailhead
Follow the trail across the river, then immediately go left. Follow this to the Upper Emerald Pools, then return via the Lower Emerald Pools and Lodge Trailhead. You can shuttle back up to the Grotto Trailhead from the lodge, or walk the social trail on the east side of the river back up to Grotto Trailhead. This makes for a nice hike with a little bit more distance to it.

From Lodge Trailhead
Start directly across from the Zion Lodge and take the paved trail that crosses the river. Once on the other side of the river, go right to the Lower Emerald Pool. To see the Middle Emerald Pool and Upper Emerald Pool, continue past the Lower Emerald Pool, under the waterfall, then up to a junction. Go left at the junction, reaching Middle Emeral Pool in just a few minutes. Just past Middle Emerald Pool is another trail junction; go right and follow the signed trail up to Upper Emerald Pool. Return the same way, or from the Middle Emerald Pool junction, you can go right on the Middle Emerald Pool trail back to the Lodge Trailhead.