Hamish Tweed, technical diving instructor and team lead for the Deep Glass Sponge Research Team (@deepglasssponge on Instagram/Facebook) joined to talk about their efforts to document the rare glass sponge reefs off the coast of British Colombia. Hamish was the subject of the documentary Moonless Oasis (check out episode 15 of TBFY In Conversation) and continued the conversation about these amazing creatures, the challenges and rewards of diving to visit them and the importance of protecting these habitats. Also, check out the Marine Life Sanctuaries Society (mlssbc.com) who are playing a big part in this work as well.