The trailhead is reach by first getting to Antelope Island. This is off I-15, west of Layton. Take exit 332 off I-15, and head west on Antelope Drive. About 7 miles from the freeway is the entrance to the park.

From the entrance to the park, cross the causeway and go left at the first junction after the causeway. Shortly after take the next left, staying on Antelope Road that is signed for Frary Peak. Follow this road about 11.3 miles to the trailhead that is signed, with a parking area on the left side of the road. The first 10.7 miles are paved, the last part is good, graded dirt road.

Fielding Garr Trailhead
If hiking in the winter when the road is closed, and starting from the Fielding Garr Trailhead, head south on the road which turns to dirt at the gate, and follow it for 0.6 miles to the Sentinel Trailhead.

Sentinel Trailhead
The trail, a two-track dirt road, heads west from the trailhead. About 0.9 miles from the trailhead, a spur road goes north to Mushroom Springs. The springs are 1 of about 40 springs on the island that provide freshwater to the island's wildlife.

Stay on the main trail as it gets steeper and switchbacks up.

About 1.9 miles from the Sentinel Trailhead, the road splits. This is the loop junction for the Sentinel. You can hike in either direction. I recommend going left here first. The trail climbs to the shoulder of the Sentinel and you get the first views of the west side of the island, the Great Salt Lake, and Stansbury Island in the distance.

Continue on the dirt road to the west side of the Sentinel to a signed junction and picnic table that marks the backside of the loop. Go right, north, on the single track trail as it passed behind the Sentinel and meets with a two-track dirt road on the north side. There is a picnic table at this north junction as well. Go right on the two-track as it descends back to the loop junction, and then back down to the trailhead.