Observatory Science Centre & Museum

What it’s like

Telescope domes, a science playground and water play areas to poke about in for a good half a day near Herstmonceux.

This is a hands-on science centre built around the old Herstmonceux telescope domes, and the exhibits are the point rather than an afterthought. There are over 100 interactive exhibits inside covering Earth & Beyond, Light & Colour and Forces, plus telescope tours you can join to see the domes properly. Outside there's a Science Playground with big interactive exhibits and water play areas with dams and locks, which is where a dry morning turns into a soggy one if you've packed spare socks or not.

It works well across a broad age range, roughly nought to sixteen, because under-fours and carers get in free and there's enough scale and noise in the outdoor exhibits to hold an older kid's attention too. Admission is £13 for adults and for children aged four to sixteen, which adds up fast for a family of four, though the annual membership at £45 pays for itself if you think you'll be back more than a few times a year. Just don't expect that membership to cover ticketed events like the Stargazing Evenings, that's a separate booking.

You don't need to book a day ticket, you can turn up and buy on the day or online, though annual members just show their QR code at reception. It's open weekends year-round plus East Sussex school holidays, 10am-5pm in the warmer months and 10am-4pm from late October to late March. The café does sandwiches, toasties and cake if you don't fancy carrying a picnic, though there's a picnic terrace behind the main building overlooking Discovery Park if you do.

Worth knowing before you set off: some of the telescope areas involve steep flights of stairs, and the outdoor paths are uneven with grass and flagstones, so a buggy or wheelchair will have a bumpier time of it outside than in. Two of the telescope domes are wheelchair accessible, and there's an accessible toilet with a changing bed and hoist, but only five Blue Badge spaces, so it's worth calling ahead if getting to the entrance needs a hand.

Facilities

Need to know

Best for

0 to 16; toddlers get in free, older kids get the water play and telescopes

Parking

Five Blue Badge spaces. Call ahead for assistance getting to entrance

Food

Café serving sandwiches, toasties, biscuits, cakes, tea, coffee, hot chocolate and cold drinks

Wheelchairs

Wheelchair accessible exhibit spaces and two telescope domes

Dogs

Assistance dogs welcome. Ask reception for water and poo bags

Parties

Birthday parties available with hands-on exhibits, private room for party tea, and rocket-making activity option

Worth knowing

Annual Membership gives 12 months unlimited daytime entry on public opening days

• Membership doesn't cover ticketed extras like Stargazing Evenings, so check that's a separate cost.
• Only five Blue Badge spaces, so call ahead if you'll need help getting to the entrance.
• Outdoor paths are grass and flagstone, uneven in places for buggies and wheelchairs.
• Winter weekends close an hour earlier, at 4pm instead of 5pm.

Plan your visit

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