• No bikes, scooters or dogs inside the gates; strollers and wheelchairs are fine, and bikes and scooters can be left in the marked spots
• Aquarium hall past the greenhouses, with 29 big tanks of underwater plants and fish, reached through the Panorama of Nature greenhouse and good for a rainy hour
• Under-14s stay with an adult, especially on the rock garden and by the ponds, under the garden's own rules

A university botanical garden on the edge of Ostrów Tumski, with the cathedral towers rising behind the flower beds. Kids cross a wooden bridge over a pond with nesting ducks and big golden fish, wander the rock garden hills, and stand next to a fossil tree trunk around 300 million years old.

Indoors, an aquarium hall has 29 large tanks, one holding red piranhas.