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Loading…Hidden Hollow and Knowlton Swim Club host many events throughout the season for our members and their guests.
Check our swim club calendar to keep updated with swim club events.
Pool offices are cashless. The snack bars will still accept both cash and card.
Friendship Day: June 15th

Bring a friend for a fun day in the sun at the pool!
Guest Fee: $17 per person
Pre-Teen Splash Party: June 18th
Ages 9 – 12
Knowlton Swim Club
7 pm – 10 pm
Members $10 Non-Members* $15
*Please note: Non-members can not come into the swim club without an active member of the swim club.
Note to Parents: If you are dropping kids off for the event and they are bringing a non- member guest you will need to accompany the kids to the office and check the guest in and sign the guest release form.
Your ticket includes…
Entertainment
Slice of Pizza or Hot Dog
Soda
Swimming
Friends, Dancing, and Fun!
The snack bar will be open for candy and limited food until 10 pm
Parents are welcome to stay for this event.
Parents of Guests must pay a non-swimmer guest fee of $10 if staying for the event.
Mary Schlegel Memorial Diving Invitational: June 28th
Mary Schlegel Memorial Diving Invitational: June 28th
Grandparents Day: June 29th
Bring along the Grandparents for a family fun day!
Guest Fees: $17 per guest
Fourth of July Celebration: July 4th
Join us on the 4th of July for a day of games and celebrations at both clubs! We will be having a variety of activities beginning at 1:30 pm including a underwater parade, pie eating contests, water balloon toss, and more! No matter what pool you go to you are sure to have a festive fun-filled day!
Standard guest fees apply.
Reminder both clubs close at 6:30 pm on the Fourth of July.
Great American Picnic & Corn Boil: July 5th
2 pm – 5 pm
Knowlton Swim Club
Entertainment
Food service will begin at 2 pm and end at 4 pm
Food Fee: $10
Choice of burger or hot dog or grilled chicken
Garden Salad, Potato Salad, Grilled Corn Salad, Cucumber Salad
Unlimited Corn-on-the-Cob
Cake and Pies provided by Linvilla bakery
Standard guest fees apply.
Family Splash Party and Corn Boil: July 18th
2 pm – 6 pm
Hidden Hollow Swim Club
Food will be served between 3 pm – 5 pm
BBQ Buffet – $12
Choice of burger or hot dog or grilled chicken
Seafood Boil – MP
Shrimp, Clams, Mussels, Corn, Potatoes cooked together in a flavorful broth
Both Packages Include…
Garden Salad, Pasta Salad, Potato Salad, Cucumber Salad, Corn Salad, Fruit Salad, Unlimited Corn on the Cob, Desserts provided by Linvilla Bakery, Sheet cake and Assorted Pies
Standard guest fees apply.
Copy of Colorful Playful Illustrative Summer Festival Invitation FlyerGrandparents Day: July 20th
Bring along the Grandparents for a family fun day!
Guest Fees: $17 per guest
Teen Splash Party: July 23rd
Ages 13 – 17
Hidden Hollow Swim Club
8 pm – 11 pm
Members $10 Non-Members* $15
*Please note: Non-members can not come into the swim club without an active member of the swim club.
Note to Parents: If you are dropping kids off for the event and they are bringing a non- member guest you will need to accompany the kids to the office and check the guest in and sign the guest release form.
Your ticket includes…
Entertainment
Slice of Pizza or Hot Dog
Soda
Swimming
Friends, Dancing, and Fun!
The snack bar will be open for candy and limited food until 10 pm
Sip N’ Dip: July 25th
Join us for a fun evening at Hidden Hollow Swim Club! This is a 21 and older event, so gather your friends for a night out. BYO Drinkies – NO GLASS and enjoy a relaxing time by the pool.
Date: Saturday, July 26, 2025
Time: 7:30 PM – 10:30 PM
Cost:
– Members: $10
– Non-Members: $15
Woodfire pizza will be available for purchase! Don’t miss out on this fantastic evening of sipping, dipping, and socializing!
Friendship Day: July 27th
Bring a friend for a fun day in the sun at the pool!
Guest Fee: $17 per person
Taco Tuesday: July 28th
5 pm – 8 pm
Knowlton Swim Club
Entertainment:
Food Fee $12
Kids Under 10 Children’s Menu $6
Food Service begins at 5 pm
Our food service team has been slow-roasting and hand-pulling pork, making salsa and guacamole, and so much more to bring you an elevated food experience right at the pool! The snack bar will be open during the event with their normal food menu as well as a special non-alcoholic slushy available for purchase!
Standard guest fees apply.
Sip N’ Dip: August 1st
Join us for a fun evening at Knowlton Swim Club! This is a 21 and older event, so gather your friends for a night out. BYO Drinkies – NO GLASS and enjoy a relaxing time by the pool.
Date: Saturday, August 1, 2025
Time: 7:30 PM – 10:30 PM
Cost:
– Members: $10
– Non-Members: $15
Woodfire pizza will be available for purchase! Don’t miss out on this fantastic evening of sipping, dipping, and socializing!
Pre-Teen Splash Party: August 6th
Ages 9 – 12
Hidden Hollow Swim Club
7 pm – 10 pm
Members $10 Non-Members* $15
*Please note: Non-members can not come into the swim club without an active member of the swim club.
Note to Parents: If you are dropping kids off for the event and they are bringing a non- member guest you will need to accompany the kids to the office and check the guest in and sign the guest release form.
Your ticket includes…
Entertainment
Slice of Pizza or Hot Dog
Soda
Swimming
Friends, Dancing, and Fun!
The snack bar will be open for candy and limited food until 10 pm
Parents are welcome to stay for this event.
Parents of Guests must pay a non-swimmer guest fee of $10 if staying for the event.
Slice & Swim: August 15th
5 pm – 9 pm
Hidden Hollow Swim Club
Come out and enjoy a family night under the stars. The snack bar will remain open late with our wood-fired pizza oven!
Standard guest fees apply.
Pizza sold separately.
KSC Campout: August 29th - August 30th
Lights out, this is going to be fun!
Swim late until 10:00 pm Saturday night. Grill if you will, the snack bar will be open late. Or organize a potluck among friends. Enjoy s’mores around the campfire. Listen to spooky stories! The grounds will be lit only by tiki torches.
On Sunday, wake to birds singing. Take a refreshing early morning swim. Feast at the hot breakfast buffet. Stay and enjoy a Musical Morning. Tell your friends you belong to the coolest swim club around!
All for one low fee of $20 per person. Members only. Reservations required – deadline August 28. Special rules apply. Weather permitting of course.
Rules
Participation
All participants must register and will be given a wristband to wear during the evening. Participants are limited to the first 75 to register and pay.
Members only, no guests.
Children must be supervised at all times.
Children must be accompanied to restrooms in the overnight period.
At all times we expect behavior that is respectful of others, including their desire to sleep. No illegal activities are permitted.
Barring an emergency, once in, participants must remain the entire night.
Set up
Tents can be set up after 6:00 pm in the main field, front picnic area, or back grove.
Tents must be taken down by 9:00 am the next morning.
No parking permitted at back gate.
Activities
Pools close at 10:00 pm. No entering the pools when guards are off duty.
Barbequing/grilling permitted only in designated area between 6 and 9 pm.
Lights out at 11:00 pm. Activities and noises must cease at that time.
As always, no glass or alcohol is permitted.
Early morning swim on Sunday from 8:00-10:00 am.
Breakfast will be served beginning at 8:00 am.
What to Bring
Flashlights
Plenty of water, snacks
Toiletries
Acoustic instruments
Campfire stories
A telescope if viewing conditions are amenable
Cost
$20 each
Cardboard Regatta: August 30th
Come and enjoy Hidden Hollows 4th Annual Cardboard Regatta boat race!
Registration will begin on Friday, August 16th and you can register by calling 610-566-9860 or stopping by the Hidden Hollow office.

- Ten teams will be able to participate.
- Teams must consist of 2 people.
- One participant must be a member.
- One participant must be 18 years and older.
- Both team members will build the boat. One team member will take it on its maiden (and probably last) voyage. Last boat floating wins!
- All boats must be built at Hidden Hollow on the day of the event. Boat building will begin at 11am. We will supply all the cardboard and boat building supplies!
- The race will begin at 2:30pm sharp.
- Winner will receive a cardboard trophy and $25 in Linvilla Cash.
- All additional questions can be directed to the Hidden Hollow Office at 610-566-9860.
- Bon Voyage!
Labor Day Celebration: September 7th
Both Hidden Hollow & Knowlton host games and festivities beginning at 1:30 pm.
Gather together for a fun day of family fun!
Standard Guest fees apply.
PPL Pickleball Tourney
The Peg & Paul Linvill Pickleball Tournament!
Sunday | 10:00am – 2:00pm
Get ready to rally! We’re excited to host the PPL Tourney. whether you’re here for fun or fired up to compete, its going to be a day full of serves, smashes, and good times.
Event Details:
Date:
Time: 10:00am – 2:00pm
Cost: $20 per team
Tournament Format:
10:00am – 12:00pm: Recreational Bracket
(For players who are here for fun and friendly play!)
12:00pm – 2:00pm: Competitive Bracket
(Bring your best game and compete for the top spot!)
Prize:
Winning teams will receive a Guest Card, perfect for sharing the fun with someone new at a future event!
Registration:
Tour de Knowlton:
For the first time ever we will be doing an official Tour de Knowlton!
The object is simple, to go through all of the pools and slide or jump on all of the apparatuses. The fastest time wins.
This exciting sprint will start at 10:00am. Check-in will begin at 9:15am with rules being explained at 9:45am.
The winner will receive bragging rights and a fun trophy!
To enter you must pre-register.
The cost of the event is $5 cash.
You must be 18 years or older to compete.

