Hadleigh Lodge is near Padstow, about two miles out. It's in a little place called Little Petherick, which is quiet. The lodge itself is detached, so no one right on top of you. You've got your own garden, it's enclosed.
It sleeps six. Three bedrooms and two bathrooms, which helps with the morning queue. It's got a 4 Star rating. It's comfortable, clean, everything works. It's a lodge, so the rooms are open plan. The stairs inside are just normal stairs.
There's parking right there at the lodge. You get a washing machine, dishwasher, WiFi, a TV. There's a cot and highchair if you need them. No pets, sorry.
Padstow is the main place to go. It's a fishing port, so there's the harbour and boats. Plenty of places to eat. You can walk the Camel Trail from there if you've got bikes. The beach at Trevone Bay is close, maybe five minutes in the car.
For a wider day out, you've got the whole north coast. Newquay is down the road for surfing. The Eden Project is about a 25 minute drive inland. Bodmin Moor is similar, if you want some open space.
Useful links for planning: National Trust Cornwall and the official Visit Cornwall site.