We all just looked at each other and said , " Already ? " Surely we could not be at the waterfall where we were supposed to gather , eat lunch and swim ? For one , there was no sound of water .

Question with options to choose from: Why were they supposed to gather at the waterfall ?
Choices:
(1). They were looking to avoid the waterfall ..
(2). None of the above choices ..
(3). They were looking to get rest at the waterfall ..
(4). They were looking to do some work at the waterfall ..
(3).