Postup straddles the Adriatic Sea with views across the Pelješac Channel to the islands of Korčula and Badija as well as across the Mljet Channel to the islands of Mljet and Lastovo.
The rich monastery library includes particularly rare incunabula of Aesop's fables (Brescia 1487) printed by the Lastovo printer Dobrić Dobričević (s. Lastovo), a collection of documents (the sultan'sedicts) and a sabre belonging to Vuk Mandušić, one of the best-loved heroes of Serbian epic poetry.