The Window Trail can mean two different things. There is The Window Loop Trail which is a .3 mile loop that is paved and handicapped accessible, and a 5.6 mile hike out to the actual window that descends 980 feet (remember that also means a 980 foot ascent on the way back). I took the short Window Loop Trail which offered a nice view of the window and the basin beyond. I walked a short distance down the other trail too just to get a feel for it. The trailheads for the window trails are located at the Chisos Basin Parking Area, and there are a number of other trailheads here too.
Equipment: Good walking shoes, plenty of water, sunscreen, a hat, a camera for the beautiful scenery.
The Lost Mine Trail is a great hike, probably about the best in the park, but it is not for the faint of heart. It raised my heart rate enough for my pacemaker to make a record of it. The trail is 4.7 miles long with an elevation gain of 1300 feet. That said it has the most spectacular scenery in the entire park. It is steep in places and the footing is sometimes rocky and uncertain. Do not attempt the hike if you have health problems and do not hike it alone. This is also an interpretive trail. You can get a guidebook and there are markers along the trail that explain the wildlife, plants, and geological aspects of the area. It is very interesting.
Equipment: Good walking shoes, plenty of water, sunscreen, a hat, weather appropriate clothing, maybe a snack. Don't forget you camera.
There is a short (maybe 1/4 mile) unpaved trail that leads from the parking area, past he ruins of the buildings, to the soaking area. The trail leads by the river and is flat. There is a longer trail available too.
Equipment: Good walking shoes, a hat, sunscreen, water, and a bathing suit if you plan to soak.
There is a 1.4 mile round trip trail that leads to the Rio Grande and a nice viewpoint into Boquillas Canyon at the far east end of the road. There is also archeological evidence of pre-historic human inhabitation here. The trail is steep in places and occasionally has uncertain footing. The views are worth the hike.
Equipment: Good walking shoes, a hat. sunscreen, plenty of water, weather appropriate clothing.