Notre-Dame Cathedral walking tour in Paris with small group option

其實可以自己去就好，真的不需要花錢參加這個行程，進入也是免費的，排隊也算快，以內部來說是蠻值得參觀的

The meeting point indicated in the confirmation was completely unattended — there was no guide on-site at the scheduled time. We waited, but no one showed up or contacted us. In other words, we were essentially left stranded without any support or explanation. Due to the situation, a full refund is absolutely necessary. This was a significant inconvenience and a clear failure to provide the service as promised.