First post so I hope this will help someone without upsetting anyone.
Having just booked two Centre Parcs (thanks for the tips HUKD) trips I set out to find a bike trailer and found this. Buying this should work out cheaper than hiring something similar for 4 days.
The Spokey Joe cycle trailer is tool-free and fast-fitting, capable of towing up to 100lb. It has seating for 2 children with room for luggage behind the seats. Made from 420 denier PU-coated material and a tough steel frame, this cycle trailer has quick-release wheels and a universal chain stay hitch that fits most bicycles. This Spokey Joe cycle trailer includes a 5-point retention safety harness, waterproof sun or rain cover with a window, safety flap and zipped front for easy cleaning.
Next day delivery available if ordered before midday in most areas or store pick up.
Currently double club card points too.
Not aware of any add on/side deals but if there please let me know.
Not sure of instore options.
For comparison this is currently £100 in Mothercare and £70 in Wilkinsons.