Royal Botanic Gardens, Kew

Royal Botanic Gardens, Kew is one of London's most beloved family destinations — a 326-acre UNESCO World Heritage site that manages to be simultaneously world-leading scientific institution and genuinely wonderful place to spend a day with children of any age.

The sheer scale of Kew means every visit can follow a different route. Families with young children tend to head straight for the dedicated Children's Garden, an interactive outdoor space where kids can investigate how plants grow, play with water features, and explore nature-themed climbing structures. The Treetop Walkway — an 18-metre-high elevated path through the tree canopy — delivers one of the best views in South West London and provides a genuine sense of altitude that kids find thrilling.

The two great Victorian glasshouses are highlights in any weather. The Palm House, with its towering tropical plants and humid interior, feels genuinely exotic. The Temperate House, the world's largest Victorian glasshouse, is equally spectacular. When rain arrives, these become the perfect sheltered retreat.

Kew also runs dedicated seasonal events: the Christmas trail, summer festivals, and Halloween programmes add themed entertainment throughout the year. The gardens change dramatically with the seasons — spring bluebells, summer roses, and autumn colour all offer distinct experiences.

Multiple cafes dotted around the site make logistics easy, and the flat, well-maintained paths are stroller-friendly throughout most of the grounds.