Last year in November, Six Flags announced a whole slew of investments to all of their parks. Over a billion in investments, one of the planned investments was at Six Flags Over Texas: An unnamed record breaking dive coaster.

Quote from statement of Six Flags Entertainment Corporation in November 2024:
Among the capital investments currently planned for the 2026 operating season:
- Carowinds will introduce a record-breaking water ride
- Canada’s Wonderland will add a new record-breaking water attraction
- King’s Island will introduce a new family thrill attraction
- Knott’s Soak City will receive a water park refresh and aesthetic enhancements
- Six Flags Magic Mountain will debut a first-of-its-kind coaster in North America
- Six Flags Great America will celebrate its 50th anniversary, debuting a new kids’ area, commemorative events and park enhancements
- Six Flags Great Adventure will unveil a record-breaking launch coaster
- Six Flags Over Texas will unleash a record-breaking dive coaster
- Six Flags Mexico will introduce a family thrill boomerang coaster
We didn’t find out till this year how record breaking this coaster really is. Due to required FAA filings, we gained access to height estimates in late January.

This is one of the few filings that were found this being the tallest. A structure height of 309 feet.

This shatters the previous record (Yukon Striker at Canada’s Wonderland is 223 feet).
Is Six Flags Over Texas building a B&M Giga Dive for 2026?
— K Slide Studios (@KSlideStudios) February 4, 2025
Several new filings with the FAA indicate construction of a Project Rubi between March 2025-2026 on La Vibora's site.
Heights of 309", 308", 225", 184", and 167".
(1/3) pic.twitter.com/8M3hX1E5ad
Multiple other heights: 308, 225, 184, and 167 feet each were filed by by the park for construction.

Dallas, Texas, is getting a lot of parks investment in the next few years. This year, the new Peppa Pig Theme Park (Dallas Fort Worth), owned by Merlin Entertainment, opens in March. In addition, Universal is opening a new resort next year: Universal Kids Resort in Frisco, TX.

It is an interesting tactic to focus on a major thrill ride while two companies are working on brand new children’s parks in the same city. This could be a boon for their attendance, attracting the thrill seekers in the family. It also could crash their attendance, having Universal pulling from the newly fragmented market.

All permits have yet to be released, so we have yet to find out what the track layout is going to be and that height has yet to be confirmed by Six Flags.
One thing is for certain! It’s going to be an interesting next few years in Texas. Stay tuned for more updates!