• Tower tickets online only, with a timed slot needed even for free under-18 tickets and none sold on site
• No pushchairs on the tower climb, which has 424 steps, narrow 45cm passages and no lift, water or toilets; front baby carriers are allowed
• Under-18s climb with an adult, and the tower site warns the climb is hard going for young children

Notre-Dame is the Gothic cathedral on the Île de la Cité, built between 1163 and 1345 and reopened in December 2024 after the 2019 fire. Inside, kids can look up at the restored stone vaults and the big rose windows.

A separate climb up the south tower runs 424 steps past the gargoyles, which were built as rain spouts, to views across Paris from 69 meters up.