Riverstone International School is a small-by-design, independent Preschool– Grade 12 school where close relationships, our Five Pillars, and a top-performing IB program drive standout results—including leading statewide rankings, higher-than-average IB pass rates, strong college outcomes, and personalized counseling that helps every student find their best-fit future.

All School

August 2026
New Family Orientation – Middle School and High School

August 18 @ 12:00 pm - 1:15 pm

All School
Meet the Teacher – Middle School and High School

August 18 @ 1:00 pm - 2:00 pm

All School
First Day of School

August 19

All School
Convocation

August 19 @ 8:30 am - 9:00 am

All School
First Day of School Coffee with the PA

August 19 @ 9:15 am - 10:00 am

All School
After School Activities Fair

August 21

All School
Ice Cream Social

August 21 @ 3:15 pm - 3:45 pm

All School
All School PA Meeting

August 27 @ 8:30 am - 9:30 am

All School
counselors tea

August 28

All School
Picture Day

August 31 @ 8:00 am - 12:00 pm

All School
September 2026
No School – Labor Day

September 7

All School
Kippur

September 20

All School

About Us

Why Families Choose Riverstone

Early Years

Elementary School

Middle School

High School

Learning Support

Academic Success, Proven Results

Admissions

Affording Riverstone

Boarding

Premier IB Boarding in the Heart of Downtown Boise

Student Life

Student Life at Riverstone

All School

All School

August 2026

New Family Orientation – Middle School and High School

Meet the Teacher – Middle School and High School

First Day of School

Convocation

First Day of School Coffee with the PA

After School Activities Fair

Ice Cream Social

All School PA Meeting

counselors tea

Picture Day

September 2026

No School – Labor Day

Kippur

About Us

Why Families Choose Riverstone

Early Years

Elementary School

Middle School

High School

Learning Support

Academic Success, Proven Results

Admissions

Affording Riverstone

Boarding

Premier IB Boarding in the Heart of Downtown Boise

Student Life

Student Life at Riverstone

All School

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August 2026

September 2026