Just a warning for those traveling by train...
Those lovely people at network rail have decided to do "engineering in the Staines area" on the sunday. So - not only does that mean replacement buses between hounslow and staines, but the earliest train from london to hounslow won't get you to Staines until just before 9:30.
Looking at other options we have
1 - A train to guildford from waterloo at 7:10, changing at byfleet and new haw to a bus, getting to chertsey at 8:23 (or one an hour later)
2 - there's a bus from woking at 8:45, which goes past the entrance at 9:15 - plenty of trains to get to woking in time.
3 - Taxi or uber from hounslow or whitton (uber estimate says about £20)
4 - Taxi from shepperton (uber estimate - £10), can get to shepperton for 8:40
5 - Beg for a lift share.
So - if someone want's to share an uber - I could get to hounslow for 8:40, or if anyone could give me a lift, I'm staying in clapham on the saturday, but could get to hounslow...
typically, there's no engineering the following weekend!