Millions of lights will be switched off for Earth Hour 2015 today (March 28) between 8.30pm and 9.30pm as people show they care about our planet. Here are World Wildlife Fund’s top things to do in London after dark.

Have a sustainable candle lit dinner.

The Sustainable Restaurant Association (SRA) and WWF have partnered to bring candlelit suppers to diners across the UK on March 28, at 8.30pm, so whether you’re looking for sustainable seafood, an all-organic experience or a menu that’s local and seasonal, their guide has it covered.

Natural History Museum’s night safari

Explore the trials, tribulations and wonders of parenting in the natural world in an exclusive ‘maternal instincts’ night safari. With two tour options, a complimentary drink and the opportunity to explore the gallery after hours; there’s no better opportunity to take a closer look at some of our planet’s best specimens. Dine in the dark at Dans Le Noir in Clerkenwell Green Guided and served by blind people, the unique experience will change your view on the world by reversing your perspective.

Feel spooked at London Dungeons

Spend a day underground and journey through 1,000 years of London’s murky past as you pass through the Whitechapel labyrinth of misty east London, plague-ravaged houses and the fearsome torture chamber. A cast of theatrical actors, special effects, spooky scenes and rides makes a visit to the dungeons a truly unique and exciting experience that will scare all of your senses.

Bat watching

Did you know there are over 18 species of bat in the UK? Hyde Park is home to Europe’s smallest species of bat – the Pipistrelle, as well as Britain’s largest bat – the Noctule. For your best chance of seeing these flying mammals, head to the Serpentine lake, where at dusk you can spot them darting across the water, searching for their evening meal of bugs and midges.

Explore the trails, bicycle night tour

Watch the city lights glistening over London Bridge from the comfy seat of a cruiser bike. The tour will cycle you through the heart of the city taking in many of the iconic London sites as well as getting a feel for the mystery and romance of London’s riverside by twilight.