Sea Leigh is an apartment in Leigh-on-Sea, just north of the Old Leigh bit. It's on the first floor.
It sleeps four. There's one main bedroom, plus a sofa bed in the living area. One bathroom. It's got a 4 Star rating, so it's well looked after, with good facilities. The living space is open plan, which makes it feel quite light.
You're right in the middle of things. The shops, pubs, and places to eat start about 500 yards away. Old Leigh is a five minute walk down the hill. It's got the cobbled street by the water with the fish stalls and seafood huts. Bell Wharf beach is there too, which is sandy and good for watching the boats.
Southend-on-Sea is a couple of miles along the coast. The pier is there, along with the usual seafront things like the Sealife Centre. Chalkwell station is very close if you want to get the train into London, or just head west along the coast.
In terms of what's here: there's a washing machine, WiFi, a TV, and all the bedding and towels are included. There's a cot available if you need it. No pets allowed.
For planning trips out, these sites are useful: Visit Essex and the Southend-on-Sea visitor information page.