On the Maltese coast opposite Filfla are the archeological sites of Hagar Qim and Mnajdra, the Hamrija Tower (one of 13 watchtowers that Martin de Redin built around the coast of Malta), and a memorial to Walter Norris Congreve, one of Malta's British governors, who was buried at sea in the channel between the island and Malta.
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:for the commune of Algeria see Filfla, Algeria
At his request, he was buried at sea in the channel between the coast and Filfla Island; there is a small monument to him on the coast between Hamrija Tower and the prehistoric site of Mnajdra; the channel between Malta and Filfla is unofficially known as Congreve Channel (the official name is 'Il-Fliegu ta' Filfla').