Meeting relatives at a local hall
Pathfinder HQ in Horley hosts meetings, youth groups and similar gatherings, and its car parking is described as suiting around 15 cars. Where a family gathering is planned there, it makes sense to check directly with the venue whether a minibus has room to enter, turn and wait, rather than assuming a car park sized for smaller vehicles will suit a longer wheelbase. Once that's confirmed, you can plan where relatives should gather with more certainty, separate from any question of where the minibus itself waits.
Also covering nearby towns
Horley sits within Reigate and Banstead, Surrey, an area we also serve for minibus hire. If your relatives are staying across the wider area, Reigate, Redhill, Earlswood or Burstow may offer a more convenient pickup point depending on where everyone is based. Each of those pages covers the same self-drive minibus range, giving you an alternative point of contact if travel plans change.