The town of Symi houses 13 churches and dozens of chapels, some of which date back to Symi's Byzantine eraf. One of the most frequented attractions on Symi is the monastery located at Panormitis. This monastery draws thousands of tourists to the island each year. Popular monasteries on Symi include Roukeuniotis, Megalos Sotiris, St. Michael, and the Church of the Virgin. Churches usually remain locked unless there is a name day celebration or other festivity in progress. One of the oldest churches on Symi is the paleo-Christian Church, Aghia Irini. Nisyros:

Nisyros, also part of the Docadanese Islands in Greece, is situated between the islands of Kos and Tilos, is comparatively smaller than Symi and has an approximate population of 1000 inhabitants. The two main villages located on Nisyros are Mandraki and Nikea; these two villages are located a half day's hike along Nisyros' volcanic caldera.

Nisyros' most distinguishing feature is its "active" volcano, which has formed over the past 150,000 years and has endured at least three separate eruptive stages. Though the volcano is considered to be active, it is currently not erupting, and several fumaroles can be found along the volcano's craters. The most recent volcanic eruptions occurred in 1888 (steam explosion), and a series of ash explosions in 1871 and 1873. There was seismic activity detected on the island in 1996 and 1997 that led an international team of scientists to form the Geowarn project in order to monitor volcanic unrest in the European Union. Nisyro's volcano has five craters...

Nisyros is also well-known for the production of soumada -- an non-alcoholic almond flavored drink, honey, preserved baby tomatoes, and capers.
Why not enjoy a picnic of Nisyro's finest exports on one of the islands beaches. Nisyros' beaches are not your everyday beaches and are covered in lava rock; Hohlaki, Gialiskar, and Miramare are accessible to the public by boat.

Perhaps a nice swim in the ocean is not for you and you would rather endulge in one of Nisyros' therapeutic thermal springs? The Loutra Springs can be found a short distance from Mandraki with buildings providing accommodations, hydrotherapy, and physiotherapy. These springs provide bathers maximum comfort in sodium and sulphur rich waters that reach an enjoyable 48 degrees Celsius. The Thermiani Springs situated near Palli have been utilized since Roman times and are currently undergoing restoration. A third spring can be found in Avlaki Bay.

Nisyros is also home to four monasteries, of which Panagia Spiliani, also known as the Blessed Virgin Mary of the Cave, is the largest. Though monks do not inhabit these monasteries, they are opened to the public for various celebrations. Panagia Spiliani is located next to one of Nisyros' castles, built by the Knights Hospitaller who conquered Nisyros in 1315.

Unlike many other Greek islands, tourism is not as highly developed on Nisyros as it is on other islands.