Hello swimmers! We are excited for another great summer of swim lessons! Cathy's School for Lil Fish offers private and shared private lessons. We focus on a quiet learning environment, highly experienced instructors and individualized instruction to help your swimmer make real progress. You can view the lesson schedule here. You can also learn more about our class offerings and pricing here. Registration will open on Thursday, April 23rd at 8:30 pm MST. At that time, this REGISTRATION FORM will go live!
Thursday, March 26, 2026
Swim 2026
Hello swimmers! We are excited for another great summer of swim lessons! Cathy's School for Lil Fish offers private and shared private lessons. We focus on a quiet learning environment, highly experienced instructors and individualized instruction to help your swimmer make real progress. You can view the lesson schedule here. You can also learn more about our class offerings and pricing here. Registration will open on Thursday, April 23rd at 8:30 pm MST. At that time, this REGISTRATION FORM will go live!
Wednesday, June 11, 2025
Saturday, May 24, 2025
LAST MINUTE SWIM SPOTS!!!
If any of these interest you, please reach out to Cindy 208-713-8113 or Cathy 208-914-0045 and we'll get you signed up.
Tuesday, April 15, 2025
Summer Swim Registration
Hello Lil' Swimmers! 🐬
We’re thrilled to welcome you back for our 29th season of swimming fun! Here’s everything you need to know to get started this year:
Class Options
We offer three types of classes:
Semi-Private
These can function as one-on-one private lessons, but two lessons happen in the pool at the same time—each with a separate instructor.Family Group
Great for sibling, cousins or close friends of different abilities learning together!Mommy & Me
Perfect for our littlest swimmers (6 months - to 3 years old) to enjoy the water alongside a parent or caregiver.
👉 For detailed descriptions and pricing, please click the "Class Options" tab above.
Choosing Your Class
Once you've picked the type of class you’re interested in, head over to the "Schedule" tab to view this summer’s available weeks and time slots.
Registration Info
🗓 Registration opens Thursday, May 8th at 8:30 PM (EVENING).
We’ve chosen this time to avoid most extracurricular conflicts while still being early enough for those with early bedtimes.
At 8:30 PM, the registration FORM will go live. Simply click this link, fill in your preferred dates and times, and you’ll be done in about 2 minutes!
What Happens Next?
Over the following 48 hours, we’ll fill classes on a first-come, first-served basis using the timestamp from the submitted form. You’ll receive a confirmation email with your class time, payment details, and any additional information.
We can’t wait to see you in the pool this summer! 💦
Let’s make our 29th season the best one yet!
Saturday, March 8, 2025
2025 Swim Lessons
Monday, June 17, 2024
All classes cancelled for today
We really hate to do this, but the combination of winds, low temperatures, clouds and possibly rain is a miserable start to swim classes so we are cancelling our 9-12 classes this morning and will do makeup lessons this Friday, June 21st. Feel free to call us if you have questions.
UPDATE: We are also cancelling all classes today. Makeup lessons will be held Friday, June 21, so we are planning on Tuesday-Friday this week for all classes 9-6:30.
Thursday, June 13, 2024
Several swim spots available July 8-18, July 22-25 and July 29-Aug. 1
Tuesday, May 21, 2024
Thursday, April 25, 2024
Still time!
If you think you missed your opportunity to register for swim lessons......you didn't!!! Although our evening classes are full, there are still plenty of options between 9:00 and 3:00 in our semi-private lessons. Click on the schedule tab at the top of the page to see what's available and then click on http://www.boiseswimminglessons.com/p/registration.html to register! We look forward to seeing you all poolside.
Monday, April 22, 2024
One change to our summer schedule 2024
Please note this change to our posted swim schedule!!! Our first day of lessons was posted as, Monday, May 27th, but that is Memorial day so we will begin lessons, Tuesday, May 28th and have lessons that week through Friday, May 31st. The second week of that session will meet Monday-Thursday as usual, finishing on Thursday, June 6th! Please take this into account if you are planning on signing up for that first session.
Monday, March 25, 2024
Summer 2024 Swim Lessons
Swimmers! We are
looking forward to seeing you all again.
We have some good news. With the
cost of everything going up, Cathy’s School for lil Fish is actually lowering
the cost per class of our semi-private swim lessons this summer. We found that private swimming lessons were
highly effective for our students but were more expensive and decreased the number
of spots available for students so this year we are offering more options! Depending on your family’s needs, you can
choose to book either 1-week sessions of lessons or 2-week sessions
(lessons are held Mon – Thurs each week).
We will offer three different kinds of lessons:
1. Semi-Private lessons
2. Family Group Lessons
3. Mommy & Me Classes
In place of private lessons, we are slightly altering our lessons to be
semi-private. What that means is your
student will still have 1 on 1 instruction (or 1 on 2 if you choose), but there
will be another class (same size) in the pool at the same time. For example, your 2 beginner swimmers could
work with one teacher and your intermediate student could be working with
another teacher during the same 15-minute lesson in another part of the
pool. That shortens your time poolside,
reduces each class tuition by 20% and allows us to help more kids learn to swim
this summer!
Registration will open on Wednesday, April 24th, at 8:30 p.m. Click on the "Registration" tab at the top of the page for details on this process!
Thursday, July 27, 2023
Need a little more summer! Swim lessons aren't over!
We still have several swim spots available for Aug. 7-10. They are all private lesson spots. We are also offering late afternoon/evening classes Aug. 14-17 and Aug. 21-24, which could be private or family group lessons. If you are interested please text/call Cindy at 208-713-8113.
Saturday, July 15, 2023
A swim spot
Hi everyone! We had a last minute cancellation and I've been working off of the wait list but haven't found a good fit. The class is next week July 17-20 from 1:15-1:30. If you are interested, give Cindy a call. (Cathy is Shining this weekend) 208-713-8113.
Monday, June 19, 2023
Cloudy, cool but we are swimming!
We know conditions aren't perfect, but we are planning on lessons today! Our smiles will bring the sunshine
Saturday, May 13, 2023
Swim Lessons for 2023 are FULL!
Saturday, April 15, 2023
Registration for 2023 Swim Lessons will be April 27th
Registration opens at 8 p.m. this evening, April 27th! Please note that we JUST added additional classes to the week of June 12th, so that schedule changed slightly.
TO RESERVE YOUR SPOT, GO HERE FIRST:
https://www.signupgenius.com/tabs/1357FD900A6CAE4C06-cathys1
AFTER YOU HAVE A SPOT RESERVED, fill out one registration form per family:
https://forms.gle/C6XU7ChMgJGo2yem7
IF THERE ARE NO SPOTS AVAILABLE WHERE YOU NEED THEM, please fill out this form to be put on the waiting list. Those on the waiting list will be placed in open spots in the order they signed up.
https://forms.gle/Wn67umKKSu4E6LPX9
We are excited to bring another summer of swimming to our amazing families! This year we will only be offering private lessons, family group lessons and Mommy & Me classes. We will not be offering group lessons. However, you are welcome to share your private or family group lessons with friends. For details on the classes offered and schedule, please click on the "schedule" tab at the top of this page. Registration will open Thursday, April 27th, at 8:00 p.m. MST. BEFORE that time, we recommend thoroughly reading the "Schedule", "Levels" and "Registration" tabs on this page so that you understand the registration process. Also, PLEASE watch this 13 minute video walking you through the registration process BEFORE April 27th at 8 p.m. We look forward to swimming with you in 2023!
Saturday, April 1, 2023
2023 Swim Season
Hi everyone!!! Registration for Swim Lessons 2023 will be postponed by a few weeks this year due to one of our owners being out of the country. Please check back here on April 15th for an update. We are hoping to have our schedule posted by then. Registration will most likely happen around the end of April and lessons won't start until June. We look forward to seeing you this summer!
Monday, August 1, 2022
A few more lessons available
Hey everyone, we have just a few private lesson spots available for Aug. 15-18. These classes will be taught by Mr. Tyler between 12:30 and 2:30 in 15 minute increments. If you are interested, please email us your student's name, age and swim level at cathyslilfish@gmail.com. The spots will be filled first come first served.
Wednesday, May 18, 2022
Registration Closed - Classes Are Full - Waitlist Information
Thank you for your interest in our swim school! Our summer 2022 classes are currently full. The spots we do have open are being filled by people on the waitlist so if you're interesed in classes, please fill out the form below to be added to our waitlist and I will contact you if we get openings!
Monday, May 9, 2022
Group Lessons Registration Opens May 13th
Hello Little Fish! Registration for traditional group swimming lessons will open this year on Friday, May 13th at 7:00 a.m. and will remain open until we have 100 families registered. Our Private and Family Group Lessons are currently FULL. If you would like to be on the waiting list for ANY lessons (private, Family Group or Traditional Group Lessons), please fill out this form:
https://forms.gle/SoYDbnT7USQm5KXQ9
Instructions for Registration on May 13th:

