There are plenty of places to stay in and around Charleston - to the north in Carters Beach, Cape Foulwind and Westport or further south, in Punakaiki, Greymouth and Hokitika. Public transport is practically non-existent in this region of the country, but keep us posted with where you're staying as we may be able to arrange shuttles for you fine folk for the Wedding Day. You can find somewhere to stay using the usual places (AirBnb, Bookabach, etc), but follow this link to see some options we've already collated to help get the ball rolling: https://shorturl.at/K0FqA
We have organised a space for self-contained camper vans if you fancy making a road trip out of it (which we heartily recommend!). We will allocate spaces on a first come-first served basis, so please let us know as far in advance as possible if you'd like us to reserve you a camping spot. This is a non-powered patch sans plumbing, etc.