These are major sites in the region between Patara and Fethiye. They are about 1-2 hours drive away and can easily be accessed on day trips.
Letoon ruins are on fertile plains on a flat surface. Temples are the highlight of the site. The sanctuary was the religious center of the Lycian League, dedicated to Leto, Apollo, and Artemis.
Xanthos was the capital city of Lycia. The ruins and tombs are scattered around the area, but there is not much left from the city it once was. UNESCO World Heritage status protects what remains, including the Harpy Tomb and the Nereid Monument remains (originals in London, replicas on site).
Tlos was a very important ancient city of the Lycian region. The characteristic of the region are tombs carved on the hill and the fortress on top of a hill built later by the Ottomans offers a superb view of the plain down below. You can also visit the theater easily, almost on the road. Tlos was one of the largest and most important Lycian cities.
Saklıkent Gorge is a nature's gift to the region. The gorge is about 17 kilometers and you can visit the first few hundred meters easily. The river flows along the gorge and you will have to put your feet in the water in order to walk further. There are also many rocks that block the way, and you will return back when you see one you cannot climb. The gorge is pretty crowded, but the scenery is very nice, especially at the entrance. The river flows at a medium pace, but the water is very cold, and even on a hot day you will feel really chilled. It is possible to taste some nice Turkish meals sitting at the small restaurants by the river.
Best time to visit: April-June and September-October. Summer (July-August) is hot, but the gorge offers cool relief. The water is coldest in spring from snowmelt.
What to bring: Water shoes are essential, the riverbed is rocky, a change of clothes, a waterproof bag for phone/camera, and a towel. You will get wet.
Getting there: A car is essential. From Fethiye, drive toward Saklıkent (about 50 minutes). The gorge is well-signposted. There is a large parking area (small fee).