I travel solo there frequently-even back in the day I didn't have many acquaintances/friends...Just play it smart and you'll be fine..In fact I bet you'll have a blast making new acquaintances and maybe some new friends ..Just don't do anything you wouldn't do at home,am not saying to live a "bubble" but "wise up"...
Clives is excellent way to go and yeah, rent a cell phone from them- thats the way go...
Relax, and Have a great time...
