Issue 91 of X-Ray Magazine is available to download. The May 2019 edition features articles on Timor Leste, Guadalupe, Mexico, icebergs, cave diving at Bjurälraven and Scapa Flow. Fibonacci sequences in underwater photography are investigated in the underwater Photography column, along with the impact of flash photography on fish. Lastly a portfolio of Masayo Fukuda’s stunning paper sculptures of marine life.