Caravan Wifi without holes or drilling. Cheap!

Using the feed for the TV booster fit a splitter then a router for around £50 from Amazon.
SIM only on 30 day. Get a sim from Smarty(three) and 1p mobile (EE). For around £15 for a month unlimited. Use their website to test which SIM is best for the site you're visiting and then only activate that for 1 month while you are away.
Set the WIFI name and PWD to the same as at home and all your devices will connect automatically and not even know you've gone anywhere.
Amazon link:
Router amzn.to/3TT75mP
Plugs amzn.to/3TSX09D
Cable amzn.to/4aIb6kQ
Smarty SIM discount link:
i.smarty.co.uk/MsCVA7x

[@davehoyles437]

Just use your phone as a hotspot. 3 or 4G works perfectly. Cost probably about £5 a month more on your phone.

[@IntrepidIresons]

Quite often find that the caravan blocks a lot of signal or you're in a poor signal area. These outside, up high with the big aerials do help in those situations. Also means when I wonder off somewhere the rest of the family don't lose internet