I had a phone call with Stef yesterday. Stef and Mark have travelled to the 'crater' feature and have mapped the structure and surroundings. They told me it is a really spectacular sight. They will soon return to the weather station site (500 km by skidoo!), dismantle the station and the other measurement devices, and return to the base. We expect them back at the station sometime late next week, and back in Belgium in two weeks.