Sinkholes have been popping up -- caving in, really -- across New Orleans in the past week, and they've combined to spur the start of a makeshift holiday.

With May 5, and the annual Mexican holiday of Cinco de Mayo on tap Thursday, more than 900 people have confirmed they'll attend a new event: 'Sinkhole de Mayo.'

A Facebook page advertising the event had 988 confirmed attendees for the celebration now planned for Woldenberg Park on Canal Street in New Orleans. The event is planned for 4 p.m. Thursday.

The second of three large holes that formed on New Orleans roadways, and the most prominent, formed April 29 on the 300 block of Canal Street in front of Harrah's Casino when a wall supporting an underground tunnel gave way. The portion of the road was already blocked off from traffic due to safety concerns.

The sinkhole now has its own dedicated Twitter feed: