San Francisco
Population:
7.4 million
Money:
US Dollars $. It's best to shop around for currency conversion or use ATMs to get the best rate. San Francisco is quite expensive, so for excellent food at reasonable prices why not ask a local where they eat? And look out for discount cards that let you visit several of the top attractions over a period of a couple of days.
Language:
English is the official language, but there is an increasing Chinese population, making Mandarin and Cantonese quite prevalent. Spanish is also spoken by the Hispanic population.
Dialling codes:
+1 for the USA then 415 for San Francisco
Entry:
You need a valid UK passport to enter the USA, plus you need to fill out an online application for the visa waiver program which allows you up to 90 days in the USA and costs $14. This needs to be done at least 72 hours before arrival and can be done on your behalf if you don't have Internet access.