This wonderful TP Multiplay Playhouse is a playhouse, climbing frame, slide and sandpit combined so that should keep the kids occupied for the whole summer! It'a a WOW special offer price at Argos at just £189.99, and that's the best price it has been for a very long time.
For what you are getting this is a great price. It's a playhouse on a raised deck that you access by climbing the ladder, then you can get down by slide, and underneath it there's a sandpit as well so there are loads of ways to play.
If you're not keen on the mess of play sand (like me!) then you could always just use the bit under the raised deck as a den instead.
You could keep a few children at a time happy with this one as there's so much to do and so much space. Not at all bad for less than £190 I'd say, and the reviews are pretty great too.
It's a home delivery only item as it's such a big bit of equipment, and the delivery charge is £6.95 as it's going to take two people to deliver this one.