Katakolon itself is very small and has little highlights. It's nothing more than a small village, but it's one of the major cruise ports of Greece because you can easily visit the site of Olympia.
Along the quay and the marina you will find several bars and restaurants, where you can relax on one of the terraces. There is only one main street in Katakolon with souvenir shops, leather goods, jewelery and clothes. There is also a small beach, which is very popular with the locals.
If you only want to visit Katakolon you are quickly done. Count on one hour. A visit to Olympia takes at least half a day.
TIP: Leave as early as possible to avoid the hottest part of the day. Moreover the site already closes at 15h00.
Popular ports for an excursion to Katakolon are: