Guildford

London
45 mins by train/car, with many tourist attractions and things to do.
Portsmouth
to see the Historic Dockyard. About 50 mins by train/car.
Farnham
Ancient Historic Market Town, about 15 minutes by Train/ Car from Guildford Centre.
Windsor
Fabulous royal castle, which the Queen still uses, and very attractive town. Most recently the Guildhall hosted the wedding of Prince Charles and Camilla.

World War I Brookwood American Cemetery and Memorial - Southwest of the town of Brookwood, about 9.5 kilometers six miles north of Guildford. Open daily except for December 25 and January 1; 9AM to 5PM. The final resting place for 468 American military dead from World War I. There is a small chapel inscribed with the names of 563 Missing in Action persons. Free

theme parks

There are three very good theme parks all within 45 minutes drive of Guildford:

Chessington World of Adventures
Just off M25, Junction 10 (http://www.chessington.com) 2006 opening times: from March 27th - October 31st. Great theme park and zoo that is aimed at kids and younger teenagers. Tickets: £29 adults, £19.50 kids, although there are many 1/2 price offers going on around the year.
Legoland Windsor
near Windsor, (http://www.legoland.co.uk) 2006 opening times: 25th March - 29th October. Good theme park, aimed at younger children, with fewer rides, although it has many lego towns. Tickets: £30 adults, £23 kids.
Thorpe Park
Just off M25, Junction 12 (http://www.thorpepark.co.uk) The big theme park in the South! Thorpe Park is aimed squarely at adrenaline junkies although there are plenty of rides to suit others! and is well worth a visit. Be sure to go on all the rides, especially Colossus world's first 10 loop roller coaster, Nemesis Inferno fast and fun! and 2006's big new ride, Stealth 0 - 80mph in 2 seconds!Tickets vary season to season, look out for 2 for 1 vouchers.