Hey - nice! Yes we live in London but have family in Bristol so go there a few times a year. We've actually cycled to the Avon Valley before (and on to Bath one time) from North East Bristol. And yeah there is a special Santa train at Christmas. My son did love it (and so did I!)
Yes - I've already booked travel and accommodation for Hivefest and my family are coming to Amsterdam too! Look forward to meeting you too!