Huge! Planning needs to be done in advance as it ...

Huge! Planning needs to be done in advance as it is impossible to see everything in 1 day! In COVID times, tickets need to be booked online. There is a timed entrance but not exit - so earlier times are better. Toilets are not that easy to find in here. Also, some places are just crowded with people - a multi-layered mask is recommended as many people don t respect social distancing in Paris. It s a must visit nevertheless and shorter queues now with many of the non-EU tourists out of bounds.