I'm going to a lifestyle show at Sandown Park next Saturday and was planning to get a train to Leatherhead then cycle the rest of the way (a little over 6 miles). The route I was planning was to follow the minor road north out of Leatherhead then turn left and follow the A244 up to Esher then turn onto the A307 which takes me to the racecourse. Are there likely to be any issues with this route? Also, can I leave a bike locked up at the racecourse for 2-3 hours and expect it to still be there when I am ready to leave?