Beautiful region. It was about a 90 min drive from San Salvador and I came up here on a personal guided tour with Centro America Tours. My guide Benjamin was excellent. The hike to the top of the Santa Ana Volcano was the highlight of my stay in El Salvador. My guide on the trail Herzon was great. 4 mile round trip hike that was moderately strenuous but beautiful views along the way including of the nearby Izalco Volcano. Sights and smells of the active volcano when we reached the top were awesome. Didn't see too much wildlife when visiting but it was midday. There is also an observation point with views of Lake Coatepque in the park. It was clouding up at this point in the afternoon but I could imagine this would be beautiful from photos that I've seen.