Spoleofest 2026

Speleofest 2026, celebrating 20 years at LoneStar Preserve. Theme Reveal: Slumber Party.

Speleofest is an annual caving event in Kentucky that takes place on Memorial Day Weekend. It was started in 1972 by the Louisville Grotto and has continued ever since.

Proceeds from the event have allowed the Louisville Grotto to purchase the Lone Star Preserve in Bonnieville, Kentucky, which functions as a permanent location for Speleofest and a year-round educational facility for caves and karst.

The Lone Star Preserve has grown to 126 acres in recent years and has 6+ caves on the property, 3 of which have over 500 feet of passage.

Grab your sleeping bags, headlamps, and your favorite late-night snacks. This year, we’re turning Memorial Day Weekend into a full underground slumber party.

This year’s theme taps into everything we love about Speleofest: night skies, campfire stories, community, and caves that feel like home.

Schedule of Events

Thursday
   Registration open 6PM – 10pm

Friday
   Registration open 8AM – 11PM
   Cave trips – see Cave Central
   Saturday cave trips posted 6PM
   Howdy Party 8PM – 11PM

Saturday
   Registration open 7AM – 9PM
   Cave Trips – see Cave Central, Sunday cave trips posted 9PM
   Breakfast 7AM – 10AM
   Banquet 5PM – 7PM
  Guest Speaker 7:30PM, Door Prizes to follow 

Sunday
   Breakfast 7AM – 10AM
   Registration 8AM – 12 PM

Cave Trips – see Cave Central

Caver social by the cave 7PM
   Band (The Creekers) under the shelter 7:30PM

 Monday
   Pack up and clean up. LSP closes at noon.