It's a nice name but the .co.uk is established as a days out site so would perhaps make a buyer in UK think twice without having the pair.
Not many people would search for the phrase but many days out domains are already taken.
I ran a popular days out website for a few years and personally I like it but my hesitation would be competing against the .co.uk in terms of company name.
Not sure of value as the .com would be sellable across the pond too.
In UK you could see up to low or mid-low £xxx