Born in Częstochowa, Poland, Milowka moved to Melbourne at an early age with her parents, attending Caulfield Grammar School from 1994 to 1999. At the school, she was a house captain, champion school rower and was a finalist in the statewide VCE achiever award. She received her graduate degrees in Maritime Archaeology from Flinders University, Bachelor of Business, Marketing and Event Management from Victoria University, Bachelor of Arts, History and Australian Studies from University of Melbourne, where she was a president of the Melbourne University Underwater Club. In the summer of 2007 she completed an internship in St. Augustine, Florida, with LAMP, the research arm of the St. Augustine Lighthouse & Museum, where she participated in the archaeological excavation of historic shipwreck sites. This work would introduce her to Florida diving, where she would go on to explore extensive cave systems. During her schooling, she participated as the researcher and diver in a series of qualitative underwater archeological research projects.
Diving
In the effort coordinated by Victorian Speleological Association in 2009, she and James Arundale explored Elk River streamway cave system by an additional, which has potential to become the longest continuous stream passage in Victoria, Australia. In a 2009 expedition near Cocklebiddy, she reached the midpoint of Craig Challen's 2008 line giving her the record for the longest cave dive in Australia for a female. She worked as an underwater grip in 2008 for a film by Discovery Channel Japan, "Water's Journey" by TV Asahi & Karst Productions. She was part of the National Geographic Nova TV Special expedition to Blue Holes of the Bahamas, in December 2008, as an underwater grip, followed by the expedition to look for similar sinkholes in Queensland, Australia in October 2009. Milowka was a photographic assistant on the National Geographic Magazine expedition to Bahamas Caves, November–December 2009, resulting in a few of her photos being published by the National Geographic website. Her underwater photography has been included in multimedia library of the popular website creation software WebEasy Professional, distributed by Avanquest Software. In 2010, when living in Florida, she laid over of line across a number of cave systems, the most significant of which was Mission Spring. In August 2010, together with James Toland, she made the connection between Peacock Springs and Baptizing Spring, Florida adding over of passage. She was the presenter and editor for TV series "Agnes Milowka Project" featuring underwater cave footage shot by Wes Skiles, Karst Productions. Agnes Milowka was a speaker at a number of diving related conferences. She acted as a stunt double for two female characters on the James Cameron-produced feature filmSanctum and worked during the production as cave dive instructor to the actors. In 2011 she was nominated as Dive Rite Ambassador. One of her last jobs was as a diving supervisor on BIRTH, a short film for the TRIMÄPEE fashion label. The movie has been dedicated in her name.
Death
In February 2011, she ran out of air and died after parting company to explore a tight restriction, which necessitated going solo, in the Tank Cave near Tantanoola in the south east of South Australia. In recognition of Milowka's achievements and legacy, The Agnes Milowka Memorial Environmental Science Award has been established by Mummu Media for underprivileged schools in the area of science, marine studies or exploration. In May 2011 Agnes Milowka received the Exploration Award, in recognition of the outstanding and dedicated service to the National Speleological Society Cave Diving Section, USA. A number of geologic features have been named in memory and her original exploration work in Australia: "Ag's Dreamtime Passage" in the underwater Olwolgin Cave on Nullarbor Plain, "Agnes Chamber" in Davis Cave System, Bats Ridge, Victoria and "Milowka Canal" in Elk River Cave, Victoria. Her name has been featured in memoriam at 2011 Australian Academy of Cinema and Television ArtsAACTA and in popular sci-fi webcomic book Crimson Dark, the alliance starship has been named A.W.S. Milowka.