Photo: FrDr, CC BY-SA 4.0Rainy day ideas in Kent
Kent keeps a lot of its best history underground or under cover, which is handy when the forecast turns. A Roman floor still lying where it was laid in Canterbury, a tunnel lined with millions of shells in Margate and a Harrier jump jet in Gillingham are all reachable without getting soaked.
We have split this guide into calm indoor visits and places where children (and adults) can burn off energy, then added a few autumn and half-term events that happen under a roof. Most of the museums take one to two hours, so pair two in the same town for a full day.
Opening days matter more than usual in autumn. Several of these close on Mondays or Tuesdays, so check the notes before you set off.
Museums and history under cover
Compact, weatherproof visits that suit curious children and adults alike. Canterbury and Margate each have two you can combine on foot.
Image: Canterbury Roman MuseumCanterbury Roman Museum
Canterbury's Roman Museum sits below street level around the excavated remains of a Roman town house, a scheduled ancient monument in the city centre. The star is a Roman floor mosaic still in its original position, one of very few left in the UK. It is a compact, family-friendly look at life in Roman Britain and an easy wet-weather stop near the cathedral.
Why it's here: Built below street level around a Roman town house, with a mosaic floor still in its original position. Two children go free with each paying adult over October half term, 24 October to 1 November 2026.
Image: The Beaney House of Art & KnowledgeThe Beaney House of Art and Knowledge
The Beaney is Canterbury's free museum, art gallery and library on the High Street. Browse the art and museum collections, join a spotlight tour, and pick up visitor information for the city. It is an easy indoor stop between the cathedral and the shops.
Why it's here: Canterbury's free museum, art gallery and library on the High Street, with spotlight tours on Thursdays and Saturdays at 2.30pm. An easy hour between the cathedral and the shops.
Image: Royal Engineers MuseumRoyal Engineers Museum
The Royal Engineers Museum in Gillingham is the UK's largest military engineering museum, covering more than two centuries of sappers' work around the world. The collection includes 25 Victoria Crosses, Wellington's map of Waterloo, a Harrier jump jet, a V2 rocket and a line of bridge-laying tanks. Family activities and a first-floor café make it a solid rainy-day choice in Medway.
Why it's here: The UK's largest military engineering museum, with 25 Victoria Crosses, a Harrier jump jet and a V2 rocket. Allow two to three hours, and ask at reception for ear defenders for children.
Image: Maidstone MuseumMaidstone Museum
Maidstone Museum is a free town-centre museum with a collection of more than 600,000 objects spanning archaeology, art and natural history. Galleries range from Ancient Egypt to Victorian Maidstone, and there is a regular programme of exhibitions, workshops and family events. It is an easy free rainy-day option next to the town's shops.
Why it's here: Free, with more than 600,000 objects from Ancient Egypt to Victorian Maidstone. It opens Wednesday to Saturday only, 10am to 4pm.
Image: Lullingstone Roman VillaLullingstone Roman Villa
Lullingstone Roman Villa preserves the remains of a Roman country house near Eynsford, displayed under cover so it works in any weather. See its celebrated floor mosaics and finds from Roman Britain, then combine your visit with a walk in the surrounding countryside.
Why it's here: The remains of a Roman country house near Eynsford are displayed under cover, mosaics and all, so the weather makes no difference. Open Thursday to Sunday.
Image: Shell GrottoShell Grotto
Margate's Shell Grotto is a Grade I listed underground passage lined with around 4.6 million shells in intricate mosaics, and open to visitors since 1838. Its 70 feet of winding tunnels remain a mystery, with no agreed answer to who made them or why. It is a short, memorable visit for all ages.
Why it's here: A Grade I listed underground passage lined with around 4.6 million shells, and still nobody agrees who made it. Open every day from 21 October to 1 November 2026.
Image: Turner ContemporaryTurner Contemporary
Turner Contemporary is a free contemporary art gallery on Margate seafront, in a David Chipperfield-designed building overlooking the main sands. See the latest exhibition, join an event or workshop, and take in the sea views from the café. It is an easy rainy-day choice and pairs well with a walk along the beach.
Why it's here: Free contemporary art in a David Chipperfield building on Margate seafront, with sea views from the café. From November it opens Wednesday to Sunday.
Places to burn off energy
When the children are climbing the walls anyway, take them somewhere designed for it. Book ahead at weekends and in the holidays.
Image: Clip 'n Climb TonbridgeClip 'n Climb Tonbridge
Clip 'n Climb Tonbridge is a big indoor climbing arena with auto-belay walls that suit first-timers as well as confident climbers. Each 90-minute session starts with a safety briefing, followed by about an hour on themed challenge walls, plus extras such as a vertical drop slide and the Stairway to Heaven. It is a reliable rainy-day option for children from four and for adults.
Why it's here: Auto-belay walls for climbers from age four, plus a vertical drop slide, in 90-minute sessions from £19. Extended hours run over half term, 19 October to 2 November 2026.
Image: Ninja Warrior UK Adventure Park ChathamNinja Warrior UK Adventure Park Chatham
This supervised obstacle park in Chatham Maritime is inspired by ITV's Ninja Warrior UK. Climb, swing and balance across the obstacles, bounce over the inflatable and take on the famous Warped Wall. It is an energetic indoor choice for older children, teens and adults, with separate toddler sessions for ages one to four.
Why it's here: A supervised obstacle park based on the TV show, Warped Wall included. Sessions start at £14.95, with separate Ninja Toddlers sessions for ages one to four.
Image: Chimera Climbing CanterburyChimera Climbing Canterbury
Chimera's Canterbury centre offers rope-free bouldering on colour-graded routes from beginner to advanced, all over thick safety matting. Junior clubs, parties and coaching sessions make it accessible to newcomers, and there are showers and a café. It is a good indoor alternative to the city's sightseeing for active teens.
Why it's here: Rope-free bouldering over thick matting, with junior clubs from age five and coaching for beginners. Showers and a café make it easy to linger.
Image: BluewaterBluewater
Bluewater is a large shopping and leisure destination near Dartford with more than 250 shops, plus restaurants and cafés. On a rainy day it also offers a Showcase cinema, Gravity trampoline park and Dinotropolis. Parking is free, so it is easy to make a day of it.
Why it's here: More than 250 shops plus a Showcase cinema, Gravity trampoline park and Dinotropolis under one roof, with free parking all day.
Indoor events this autumn
Half-term specials that keep you mostly out of the rain. Dates are fixed, so book early.
Image: Tunbridge Wells Puppetry FestivalTunbridge Wells Puppetry Festival
The Tunbridge Wells Puppetry Festival returns for its seventh year over October half term, with professionally curated puppetry from the UK and overseas. Shows, workshops and public events across the town cover every style of puppetry, not only puppets on strings. It is pitched as accessible and sustainable, and ideal for families looking for half-term culture.
Why it's here: Professional puppetry from the UK and overseas across Tunbridge Wells and Southborough from 26 to 31 October 2026, with shows and workshops for families. Some performances are at Royal Victoria Place shopping centre.
Image: Kent and East Sussex RailwayThe Spellbound Express
A gentle, scare-free Halloween steam train for younger children, running from Tenterden to Northiam and back. Witches, wizards and a baby dragon keep things lively on board, and every child earns a Junior Spellcaster certificate.
Why it's here: A scare-free Halloween steam train from Tenterden to Northiam and back on 28, 29 and 30 October, for ages 4 to 11. Every child earns a Junior Spellcaster certificate.
Image: Quex House and GardensNocturnal Adventures at the Powell-Cotton Museum
At the start of half term, the Powell-Cotton Museum invites families to see its famous animal dioramas through nocturnal eyes. It is a one-day special in the museum galleries at Quex Park.
Why it's here: A one-day special on Friday 23 October to see the Powell-Cotton Museum's famous animal dioramas through nocturnal eyes, from £7.
Image: Visit Medway (Medway Council)Halloween at Eastgate House
Rochester's Elizabethan Eastgate House marks Halloween with a family scavenger hunt through its historic rooms, followed by a weekend of ghostly programming. The Unexplained and an evening of classic ghost stories round off half term in a suitably atmospheric setting.
Why it's here: A family scavenger hunt through Rochester's Elizabethan townhouse from 18 to 29 October, then ghost stories from 30 October to 1 November. The house is mainly open at weekends, so check dates first.
Questions people ask
What can you do in Kent when it rains?
Museums such as the Royal Engineers Museum in Gillingham and the Canterbury Roman Museum, indoor climbing at Clip 'n Climb Tonbridge or Chimera in Canterbury, and Bluewater, which has a cinema and trampoline park alongside the shops.
Are there free indoor attractions in Kent?
Yes. Maidstone Museum, The Beaney in Canterbury and Turner Contemporary in Margate are all free to enter, though some special exhibitions and events may be charged.
Which indoor activities suit toddlers?
Ninja Warrior UK in Chatham runs Ninja Toddlers sessions for ages one to four, and the Spellbound Express on the Kent and East Sussex Railway is a scare-free Halloween train for ages 4 to 11.