Kalamos is one of the lesser known Greek islands in the Ionian Sea, west of the Greek mainland. For administration purposes, it's now considered part of the island of Lefkada, which lies to its northwest. Covering only about 25 square km (around 10 square mi.) its wintertime population is about 500. Most of its population is situated in and around the harbor town of Kalamos, on the eastern side of the island. Seen here in this drone video by Colinos, the town's population swells considerably during the summer months.