The first ascent of the island's summit Mount Friesland was made by the Catalans Francesc Sàbat and Jorge Enrique from Juan Carlos I Base on 30 December 1991. Of the other notable peaks of Tangra Mountains, Lyaskovets () was first summited by the Bulgarians Lyubomir Ivanov and Doychin Vasilev from Camp Academia on 14 December 2004, Great Needle Peak (Falsa Aguja Peak, ) - by the Bulgarians Doychin Boyanov, Nikolay Petkov and Aleksander Shopov from Camp Academia on 8 January 2015, St. Boris - by Boyanov and Petkov from Camp Academia on 22 December 2016, and Simeon () - by Boyanov, Petkov and Nedelcho Hazarbasanov from Nesebar Gap on 15 January 2017.