At the end of the summer, the Indians would return to the reservations.
VOA: special.2010.04.08
At the end of July, the roommates said goodbye, as they started summer recess and headed back to their home states to gear up for the fall re-election campaign.
VOA: standard.2010.08.07
Attheendofsummer, some children are excited to go back to school.
Obviously the Arctic Ocean was nearly or completely ice-free attheendofsummer for centuries or even millennia, and still the polar bear survived and the Inuit culture radiated.