Summer is over. Fall has arrived. But the SI Swimsuit models are still enjoying the nice weather. Michelle Jenneke continues to work on her hurdles, Bruna Schmitz and her friends became mermaids while Damaris Lewis enjoyed a crisp Brooklyn morning. Chrissy Teigen, Irina Shayk and Natasha Barnard, meanwhile, stayed indoors to work on their culinary skills. Miss any of the action? Don't worry - we've got the best pics of the last seven days in this week's Instagram gallery.