Eating at Cadwell - An idea for you
Here's an idea of the price of food at Cadwell...
A (childs) portion of chips, sausage & beans was £4.00
A Snickers was 50p
Cup of tea 75p
Bacon Roll (with 2 small pieces of bacon) was £1.75
I'd definately reccomend you get as much as poss from the supermarket before you arrive.
Louth is a lovely town and lots of take-aways at the far end of town (3 chippies in a row) and a Kwik Save.
Make sure you have lots of water too, unless I sip water almost constantly throughout the day I get dehydrated.