Looking for an easy family holiday - first timers!

[TitsalinaBumSquash]

We are a family of 6 - Me and DH, children, 15/13/7/4.

Every year we go to somewhere in the Uk and whilst the UK is lovely we'd like to explore a bit further afield this year.
We already have a week booked off work in August (same week as our childminders are on holiday)
We'd like to go abroad somewhere that is easy, we're not beach people, we just want something where we can relax, probably want breakfast at least included.
One of my DC is disabled so we would need to access heath care somewhere in an emergency and would need the ability to communicate his complex needs so somewhere that will have a decent grasp on English.
We're not looking to drive when we're there, I'd like something we can either get transport to explore or stay quite happily where we're staying.
Ideally we don't want to spend anymore that 2k for flights/shuttle and accommodation and are happy to have either 2 rooms of 3 or 1 apartment for the 6 of us.

We're nervous about going to a different country, purely because it's so new to us, we've been to Florida before but that was a wish holiday and everything was done for us. Can anyone help me out?

Bella Italia campsite is just outside Peschiera del Garda. It's a 10 minute walk to the centre along a shopping promenade. The southern part of Lake Garda is great fun for children, as there are lots of theme parks. But there's also much to discover on a more cultural level, such as Bréscia and Verona. Sirmione, which is an absolute must to visit, is close to the campsite.
The swimming complex is amazing and one of the most popular spots at the campsite, and it is well-supervised by a lifeguard. There’s a shop but also a few places to eat out if you don’t want to cook every night. Importantly for you, the campsite also has its own medical centre with a bilingual doctor on hand most days of the week.
There’s also a little land-train which goes around the campsite if mobility is an issue. Organised excursions off-site are regular and varied during the high-season.

An easy one would be Center Parcs in Belgium or the Netherlands.

There's also Lalandia in Denmark which also has Legoland next door if any of the DC are Lego fans.

Similar sort of arrangement to Center Parcs, woodland chalet type accomodation and waterpark and other activities.

About a mile or two from Billund airport, which you can get to cheaply with Ryanair from Stansted (not sure about other flights availability)