Cornwall is one of those rare places where a family holiday practically plans itself. Between the wild coastline, world-class attractions, and a climate that somehow manages to grow palm trees, there is an extraordinary amount to keep children of every age entertained. Whether you are chasing rock pools at low tide, watching rescued seal pups learn to swim, or sheltering from a summer squall inside a tropical rainforest biome, Cornwall delivers the kind of days out that children talk about for years.
Here is our guide to the very best family and kids activities across the county, complete with practical tips to help you make the most of every visit.
The Eden Project: A Living Classroom Under Giant Domes
No family trip to Cornwall is complete without a visit to the Eden Project, the spectacular complex of geodesic biomes nestled in a former china clay pit near St Austell. The Rainforest Biome alone is worth the journey — it is the largest indoor rainforest in the world, and walking through it feels like stepping into the Amazon. Children are captivated by the towering banana plants, cascading waterfalls, and the sheer warmth of the place (bring layers you can peel off).
The Mediterranean Biome is a fragrant wander through olive groves and citrus orchards, while the outdoor gardens change dramatically with the seasons. There are dedicated play areas for younger children, a zip wire for the brave, and an ice-skating rink in winter. The whole site is designed to spark curiosity about the natural world, and it does so brilliantly.
Practical info: Adult tickets are around £33 online, with children aged 5-16 at £12. Under-fives go free, and up to four children per adult enter free as well, making it remarkably good value for larger families. Open daily from 10am (9.30am during school holidays), typically closing at 5pm or 6pm in summer. Pre-booking a time slot is strongly recommended. Allow at least half a day — most families end up staying longer.
Cornish Seal Sanctuary: Meeting Cornwall's Most Charming Residents
Tucked away on the banks of the Helford River near Gweek, the Cornish Seal Sanctuary is a rescue and rehabilitation centre that gives families an unforgettable close encounter with grey seals. The sanctuary takes in injured and orphaned seal pups from around the Cornish coast, nurses them back to health, and releases them back into the wild. Watching a pup being bottle-fed or seeing a recovered seal splash about in the outdoor pools is genuinely moving.
Beyond the seals, there are otters, Humboldt penguins, goats, and ponies, plus a nature trail through the surrounding woodland. The talks and feeding demonstrations happen throughout the day and are excellent — keepers are passionate and brilliant at pitching information to young audiences.
Practical info: Open year-round except Christmas Day. April to October hours are 10am to 5pm; November to March, 11am to 4pm (last admission at 3pm). Book online at least two days ahead for a 20% discount. The sanctuary is at Gweek, near Helston, TR12 6UG.
Rock Pooling: Cornwall's Free Natural Aquarium
Rock pooling costs nothing, requires no booking, and is one of the most absorbing activities you can share with children in Cornwall. The trick is timing — head to the beach around two hours after high tide, when the pools are freshly filled but you still have several hours before the water returns.
For the best rock pooling in north Cornwall, make for Treyarnon Bay, a picturesque cove between Newquay and Padstow with large, shallow pools teeming with blennies, prawns, and anemones. The beach has lifeguard cover in summer, toilets, and level access from the car park. Further south, Hannafore Beach at Looe is a rock-pooling paradise — vast expanses of rock are exposed at low tide, and you can easily spend two hours working your way along the shoreline.
On the Lizard Peninsula, Kennack Sands combines a sandy family beach with excellent rock pools at either end of the bay. Pack a bucket, a small net, and a magnifying glass. Remind the children (and yourself) to return everything gently to where they found it.
Practical tip: Check tide times before you go. A rock pooling identification guide is brilliant for identifying what you find.
Family-Friendly Beaches: Sand, Surf, and Space to Run
Cornwall's beaches are legendary, and several stand out as particularly family-friendly. Polzeath on the north coast is a broad, gently shelving Blue Flag beach with soft sand, reliable surf, lifeguard cover, and a village full of cafes and ice cream shops just behind the dunes. It is enormously popular in summer for good reason.
Porthminster Beach in St Ives is a sheltered south-facing crescent with calm, turquoise water that looks like it has been borrowed from the Mediterranean. There is a superb beach cafe, and the town's galleries and shops are a short stroll away — handy when the adults want a break from sandcastle engineering.
On the south coast, Gyllyngvase Beach in Falmouth offers calm swimming, a beachside cafe, and is walking distance from the town centre and the National Maritime Museum. For something wilder and more secluded, Kynance Cove on the Lizard is staggeringly beautiful, though the steps down are steep and it is best for older children.
Surf Schools for Kids: Riding Their First Wave
Cornwall is the spiritual home of British surfing, and there is no better place for children to catch their first wave. Newquay has the greatest concentration of surf schools, and most offer dedicated kids' lessons for ages six and above.
Cornish Wave Surf School on Towan Beach offers family surf lessons from £199 for up to four people (children age 6+), with all equipment provided. Their instructors are endlessly patient and know exactly how to build a child's confidence in the water. Escape Surf School runs a brilliant three-day Beach Camp during the summer holidays for 8 to 12-year-olds, combining surf lessons with beach games and activities — ideal if you want a couple of mornings free.
For a quieter, less crowded experience, head to Bude on the north coast, where Freewave Surf Academy provides lessons on the wide expanse of Summerleaze Beach. The water is typically a touch colder this far north, but the uncrowded waves more than compensate.
Practical tip: Lessons typically run 90 minutes to two hours and include wetsuit and board hire. Book ahead in July and August as sessions fill up quickly.
National Maritime Museum Cornwall: Seafaring Stories in Falmouth
Perched on the waterfront at Discovery Quay in Falmouth, the National Maritime Museum Cornwall is one of those museums where children do not realise they are learning. The centrepiece is the Flotilla Gallery, a towering space hung with boats from around the world — from tiny coracles to sleek racing yachts — that is genuinely awe-inspiring.
The interactive galleries let children try their hand at navigation, boat design, and knot-tying. The underwater viewing window into Falmouth harbour is mesmerising (you never know what might swim past), and the changing exhibitions keep things fresh on repeat visits. There is also a dedicated Under-5s area, making this a reliable option for families with toddlers.
Practical info: Open daily 10am to 5pm year-round (closed 24-26 December). Located at Discovery Quay, Falmouth, TR11 3QY. Allow two to three hours.
Lappa Valley: Steam Trains and Secret Adventures
Hidden in a wooded valley near Newquay, Lappa Valley is a charming, old-fashioned family attraction centred around miniature steam railways. The journey begins at the car park, where a steam train transports you into the valley — a theatrical touch that delights younger children. Once inside, there are two lakes (one for boating, one for wildlife spotting), crazy golf, a brick-path maze, multiple playgrounds, and woodland walks.
The Engine Shed houses a multi-level indoor soft play area, which is a godsend on drizzly days. The whole place has a gentle, unhurried pace that makes a welcome contrast to bigger theme parks. Dogs are welcome too (£1.50 per dog, on leads).
Practical tip: Pre-booking is recommended. Open from spring through to late autumn, with special events at Christmas. Check the website for seasonal opening dates.
Blue Reef Aquarium: Nose to Nose with Sharks
Right on the seafront at Towan Promenade in Newquay, Blue Reef Aquarium packs an impressive amount into a compact space. Children can walk through an underwater tunnel surrounded by sharks and rays, meet a giant Pacific octopus, peer at seahorses and tropical fish, and watch the daily talks and feeding sessions.
It is an ideal option for a half-day visit, particularly on a rainy afternoon. The aquarium sits right next to Towan Beach, so you can combine it with a coastal walk or a surf lesson on a fine day.
Practical info: Open daily from 10am to 5pm, year-round. Located at Towan Promenade, Newquay, TR7 1DU. Tickets are best booked online for savings.
Rainy Day Options: When the Cornish Weather Has Other Plans
Cornwall's weather is part of its charm, but when the heavens open with small children in tow, you need a plan. Beyond the Eden Project and the Maritime Museum (both excellent wet-weather options), consider these:
Raze the Roof in Penryn is an adventure play centre with a climbing wall, ball cannons, laser tag, a VR arena, and a separate safe space for under-fives. It is noisy, chaotic, and children absolutely love it.
Carnglaze Caverns near Liskeard offers a genuinely atmospheric underground experience — these former slate quarries now host an underground lake lit with an eerie blue-green glow. The temperature underground is a constant 10°C year-round, so bring a jumper regardless of what is happening above ground.
For art-loving families, Tate St Ives has a superb programme of family workshops and trails, and the building itself — perched above Porthmeor Beach with sweeping Atlantic views — is worth visiting for the architecture alone.
Quick Tips for Family Days Out in Cornwall
- Book ahead in summer. Cornwall's best attractions get extremely busy during July and August school holidays. Pre-booking saves both money and queuing time.
- Check the tides. Many of Cornwall's best beaches and rock-pooling spots are tidal. A quick look at a tide timetable can be the difference between a perfect day and a disappointing one.
- Pack layers. Cornish weather can shift from blazing sunshine to driving rain and back within an hour. Waterproofs and sun cream in the same bag is standard practice.
- Go early or late. Popular beaches like Polzeath and Porthminster are noticeably quieter before 10am and after 4pm in summer.
- Use the Park and Ride. St Ives, Falmouth, and several other towns offer park-and-ride services in summer. Driving into the centres can be nightmarish in peak season.
- Embrace the rain. Some of Cornwall's best family days out are indoors. A wet morning at the Eden Project followed by a cream tea is a perfectly valid holiday day.