I have loved almost all weddings I have been to. Couples who have a separate party from the actual legal bit and know it will involve costs to guests often choose somewhere pretty even if far from home, it makes it more appealing. I wonder if this is true in this case? It is hard if you are short of £ of course, any venue a stretch, and Airbnb or Premier Inn are very expensive now, as is self catering. I would see it as a trip, but with a point, to celebrate their match. As to the gift, that is hard, maybe sleuth with relatives about what is appropriate, nothing or a modest cash as that is what they have requested. If they don’t want vouchers, don’t give. Both my daughters had honeymoon funds where folk could donate anonymously. It seemed to be what all their friends did, their generation used to it. Another had a house mending fund. But both had very modest hen events and sourced accommodation with friends for out of town guests. Work out what you can afford and enjoy. Hope the location is worth it!