The last 2 days we’ve had the task cancelled shortly after the launch window opened. The first day was due to too-strong winds on launch (Flynn’s) so most of the field couldn’t get off (I had just launched and it was getting strong, but still manageable). After about 10 minutes the call came over the radio that the task was cancelled (a 110 km task downwind) so we all headed out to land.
After packing up we went for a swim, and then explored a ridge soaring site on the Owen’s gorge rim. You can drive right to the launch, and faces south, for evening flights when it’s blown out during the middle of the day. I hadn’t brought my glider but the others flew around for a bit until it got dark and the winds died.