And then a few of us slipped out early to set up the picnic in Princes Street Gardens . The catering was done by Valvona and Crolla , which is apparently the best deli in the UK - and I believe it , because everything was SO good . It was nice for all of us to be able to share one big picnic together - I think it 's the only meal we ' ve eaten together since the first night here .

Question: What may be the reason they slipped out early ?
Answer: They wanted to avoid sitting next to other people .They wanted to catch the sunset later at night .The park gets crowded as the day goes on .They wanted to be the first so they could brag .