Sark has a doctor, but no hospital, so take out travel insurance. There is no dentist on Sark. If you are travelling in the high season it's worth booking a carriage ride in advance, as they get very busy. Apart from the mid-summer months there are no boats on Sundays, so plan accordingly. For those of you who are interested in the history of the places that you visit, Sark's is fascinating.
Early records suggest that a monastery was founded on the island in the sixth century.
But there is also evidence to suggest that the island was once occupied by Romans. Like the other Channel Islands, Sark was later annexed by the Normans and then, in the 13th century, attached to the English Crown. Sark today is still very much as it became during the reign of Queen Elizabeth I, by which time the island was deserted. She, in 1565, appointed Jerseyman Helier de Carteret as Seigneur. He was given certain rights and he brought with him to Sark 40 families from Jersey, many from his home parish of St Ouen, who were each given a parcel of land on which to settle.