You don't need many days to see Meganisi, as the island is so tiny you can trek around it. We went there from Nydri, Lefkada, and I believe this is the only way to go. The island is very beautiful, the top is the green beaches with small pebbles and crystal sea. These are some of the cleanest beaches I have seen in Greece (I generally think the Ionian has better beaches than the Aegean sea). Vathi, where the ferry from Nydri arrives, is a calm village with old houses. Taverns in the port offer really fresh fish (not frozen, as in other restaurants). The locals go fishing ver early in the morning and then sell in the market. Hotels are not much on Meganisi, you will mostly find studios and rooms to rent.