Things to do |

Traverse volcanic remains on a loop near a Carlsbad lake

A vast trail network in Carlsbad lets hikers climb what’s left of one of North America’s smallest volcanoes and take in the wildlife of a nearby lake.

This roughly 2.6-mile moderate hike is located within the Lake Calavera Preserve and the Carlsbad Highlands Ecological Reserve. Between the two areas are hundreds of acres of wildlife habitat, including for birds like egrets, herons and ducks.

But what really stands out is the geological history: the 500-foot Mount Calavera, which rises just behind the lake, is an inactive plug dome volcano that is believed to have erupted 15 to 20 million years ago, according to the City of Carlsbad. Hikers can climb atop the volcano for a 360-degree view or hike around the peak and admire its interesting features.

The trail system here is extensive, and hikers should feel encouraged to mix and match trails on their walk. For example, I set out to do a roughly 5-mile loop around Lake Calavera, but my plans changed when I came across other trails that looked more interesting, such as the one that climbed Mount Calavera.

Find a map of the area on the city of Carlsbad’s website, and consider using an app like AllTrails to help remain on a set path.

Begin the hike at the trailhead located off Tamarack Avenue, slightly northeast of Strata Drive. Street parking is available.

On the righthand side of Tamarack Avenue, there is a paved road heading southeast into the preserve. Take this, then find the start of the Lake Loop Trail — a wide, dirt path — on the lefthand side after the bathrooms.

Continue on the trail — lined on one side with residential homes, the lake and its vegetation on the other — for a little less than a mile before coming to a sign directing visitors toward a creek crossing.

After traveling across a wooden bridge and some water, follow the signs directing to the lake, including one marker that points southeast toward the lake, the dam and peak.

From there, follow the trail that leads in the direction of the peak. There is about 0.6 miles of incline, including a very steep final section as hikers reach the top of Mount Calavera.

Take in the view of North County communities and the Pacific Ocean on a clear day before descending the mountain. I headed down a path on the southern side of the peak, but note that nearly all the trails coming off the mountain appear to connect with the Lake Loop Trail, which takes hikers back to where they started.

Sections can be steep and slick, so use caution heading down. Once hikers reach the Lake Loop Trail, simply follow it back in a westerly direction to the trailhead on Tamarack Avenue.

Along the way back, stop to look at the volcano remains and the waterfowl enjoying the lake.