London Weekend trip suggestions please

[Snoopy111]

I'm planning a trip with a 10 year old and 2 19 year olds. We're arriving in Paddington and staying in the Docklands. Looking for suggestions for Saturday afternoon and Sunday morning and for where to eat near the O2.

Thanks

Should also have said that the only request is the Lego store in Leicester Square.

There are loads of restaurants in the o2. Busy if it's a show day though.

The slide at The ArcelorMittal Orbit is fairly convenient to the dock lands area (it’s in Stratford) and is such good fun!
You could catch an Uber Boat for an alternative view of London. Here’s the route map https://www.thamesclippers.com/plan-your-journey/route-map
Theres’s a cable car which runs between Greenwich Peninsula and Royal Docks. The journey itself is quite fun.
The Sunday market in Greenwich is good www.greenwichmarket.london/today/sunday Nearby, there’s the Royal Greenwich Observatory which has some interesting shows at the planetarium.

Definitely go to Greenwich, the observatory is fantastic, then you can take the ferry up the river to Embankment, passing by loads of cool things - the Tower of London, Tate Modern etc.