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Outdoor Weddings and Events Venue in St. Clair, MO
 

Come Experience Lost Hill Lake

 
Featured
Breathwork, Ice Bath & Sauna Workshop
May 9
Breathwork, Ice Bath & Sauna Workshop

Join us for a rejuvenating experience at Lost Hill Lake Wedding & Events. This workshop combines the power of breathwork with the invigorating effects of ice baths and saunas. Release stress, boost your immune system, and leave feeling refreshed and energized.

Puff n Paint: Safari- Mother's Day Edition
May 10
Puff n Paint: Safari- Mother's Day Edition

Get ready for an unforgettable afternoon of creativity, relaxation, fun and family time! Join us on Sunday, May 10th, from 2 PM to 5 PM at our beautiful outdoor venue under a covered pavilion—perfect for a rain-or-shine experience!

Open Lake Day!
May 25
Open Lake Day!

Grab your friends and head to Lost Hill Lake’s for Open Lake Day!
Don’t forget your Chairs, Blankets, Fishing Gear, or Canopies!

Womb Keepers Festival
May 28
Womb Keepers Festival

Womb Keepers Festival is a reverent gathering for womb keepers and yoni-bodied women to return to the wisdom of the body, the guidance of the elders, and the living teachings of Mother Earth.

Open Lake Day!
Jun 7
Open Lake Day!

Grab your friends and head to Lost Hill Lake’s for Open Lake Day!
Don’t forget your Chairs, Blankets, Fishing Gear, or Canopies!

2026 Spring Open House
Jun 14
2026 Spring Open House

Join us on Sunday, June 7th, from 12 - 2 pm for your chance to view the venue, including our ceremony and reception sites set-up. You will be able to see our arbors, vintage furniture, chalkboards and signs, along with tons of table décor options.

Full Events Calendar

 
 
 

 Our Signature Events

9th Annual Adult Easter Egg Hunt

Brought to you by Date Ideas and Things to Do STL, the Adult Easter Egg Hunt celebrates 8 years at Lost Hill Lake.

 


Canna Beats + Eats

We invite you to a culinary experience like no other, where every bite is infused with the finest THC, and every note from the live music is perfectly harmonized with the flavor.

 

Spring Open House

Bring your fiancé, your parents, and your wedding party to our annual Spring Open House!

 

Fall Open House

Bring your fiancé, your parents, and your wedding party to our annual Fall Open House! Meet the team and preferred vendors, and explore the venue this Fall!

 
 

 Memories from past events…

 
 
 

Ready to Reserve The
Venue For Your Own Event?

 
 
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Lost Hill Lake is the perfect place for your next family event or corporate retreat.

Enjoy the private lake and views of the Meramec River, 10 miles of nature trails, yard games, fishing, and glamping.

Relax, rejoice, and reconnect with nature on our private 200 acres of waterfront fields and woodlands. Make yourself at home and join us for an unforgettable experience with your team at Lost Hill Lake.

Start Your Planning Today
 

The venue is the perfect location for birthday parties, family reunions, holiday parties, and more. Check out our Party & Shower Packages!

PARTIES AND SHOWERS AT LOST HILL LAKE
 

Plan a girls weekend to reconnect with friends. Enjoy a day of hiking and swimming topped off with a toasty campfire.

Our Glamping options are perfect for a family getaway or a family reunion. Check out our Private Event options.

Planning a bachelor or bachelorette party? Lost Hill Lake has event packages to help you celebrate your upcoming big day.

 
 
 

Ready to talk details?

Do you like what you see, have some ideas, but also have some questions? We are here to help make your planning and stay as stress-free as possible.

Let's Make Your Event One to Remember