There are regular buses to Trat from many parts of Thailand, and a direct journey from Bangkok should take 5-6 hours.
Particularly of interest to visitors is the immensely beautiful island of Koh Chang, part of the Mu Chang Marine National Park and the smaller but no less attractive Koh Kood. There are both regular ferry and speedboat services to the surrounding islands, and both Koh Chang and Koh Kood can be reached in an hour or less.
The smaller and less visited islands of Koh Kham, Koh Mak and Koh Phi can also be found in Trat Province. These islands are all exceptionally beautiful, although somewhat less developed, and make a good option for those who want to slow down a pace or two and simply relax on the beach.
But the town of Trat itself, although often neglected by travellers, has many interesting features and is definitely worth a second look. Trat is most famous for its gemstone mining and trading, and many a good bargain can be picked up at one of the town's gem stores. There are also some excellent restaurants in the town, serving fresh seafood expertly cooked in a range of Thai and Western styles.
Trat's vibrant night market is a good place to pick up a bargain and get a good, cheap meal cooked in the local style, and whilst in the town you can pay a visit to the pretty temple of Wat Plai Khlong.
In addition to the islands, there are a multitude of beaches with pristine stretches of sand just a stone's throw away from the town. Amongst the best are Hat Sai Si Ngoen (Silver Sand Beach), Hat Sai Kaew (Crystal Sand Beach), Hat Thap Thim and Hat Ban Cheun, while Hat Ban Cheun is located at the southernmost part of Trat.
A good way to pass a day or two is to hire a motorcycle and visit each of the beaches in turn. Of course, snorkeling and scuba diving are readily available at all the area's islands and beaches. Another good way to get an idea of the vastness and beauty of the area is to go on a boat trip.