Here's a list of free/inexpensive outings for you.....
Beach
Berry picking – blackberries, elderberries etc
Build a snowman
Collect frogspawn (is this still allowed?)
Conkering (that’s horse-chestnuts, not invading other countries!! That’s a different spelling anyway!)
Farmers market
Feed the ducks
Kite flying
Leaf collecting
Mini-beast hunt
Nature ramble
Nature’s instruments – grass whistle,
acorn whistle, banging sticks together, large seed head maracas
Picnic
Playpark
Riverside walk
Shell collecting
Snowball fight
Visit local airport to watch planes taking off and landing
Visit local horses
Visit local train station to watch trains arriving and departing
Woodland walk