days out don't even need to be expensive.
like, we went to wildwood in january because it was £5 each instead of £9. it was well worth it - and had a fab picnic area.
we got the annual pass to howletts (wild animal.park about 15 miles away), which okay, cost us £26 each adult, but it means we can go back as many times as we like. "shall we go out for the day? yes! we can go to howletts"
but kids are normally just as happy with the park (and we've got qiite a few locally to cgoose from)
we're also fortunate here to be really close to the beach - we can drive or get the train.
I come from nottingham, which has no beach, but the market square is cool for kids with the fountains, it has a beach for the summer brought in!
and it hss loads of cheap and free tourist attractions (the castle, wollaton park/hall, colwick woods, etc).
lots of national trust places used to have free grounds and you just paid to go into the hall. many a summer day was spent walking round the free bits 