Six Flags Discovery Kingdom (SFDK) Discussion Thread in Theme Parks, Roller Coasters, & Donkeys! Posted July 31, 2018 This is really ridiculous a ride is opening for the season with 2 weeks of full operation hours left. The week of Aug 13 they cut back to 6pm close for a week and then are weekends only thru the fall. It's essentially like getting nothing for 2018 for the majority of the peak season to draw people in to the new "shiny thing". Don't blame the park, this ride was a prototype for a smaller company and it has been having many issues that skyline has been working in. I bet the park and Skyline are both annoyed by all the issues. The general public is going to blame the park regardless especially when SF as an whole is tight lipped when just about anything goes wrong or breaks down.