One possible version:
Last Thursday, we had a class meeting to discuss where to go for our spring outing. We came up with
several choices such as going boating, climbing a mountain, and going to an amusement park. Finally, we
decided to go mountain climbing.
The next day, we set off early in the morning. While climbing the mountain, we enjoyed the warm sunshine
and a beautiful view. However, when reached the top, we were shocked to see litter here and there, such as
bottles and banana peels. Then we started to pick up the litter. Afterwards, we put the rubbish into the nearby
recycling bin and non-recycling bin respectively.
We were tired but happy.