Seeking adventure? Come to our fifty- acre island where you will
be enveloped by the immense trees and serene setting under the
shadow of Mount St. Helens . Ride our Ziplines, rent a canoe,
fish, or just relax in the sun.
The Zipline allows guests of all ages to traverse cables under
the canopy of majestic trees. You will be surrounded with
breathtaking views and natural surroundings; a feeling you’ll
find nowhere else! This course is a fun and safe Zipline
adventure for adventure seekers, families, and corporate groups
looking for a unique Northwest experience. In addition to zip
lining, you may spend the remainder of your adventure at
Treehouse Island fishing, hiking, kayaking, canoeing, or just
relaxing in the sun. Treehouse Island is your opportunity to
recapture the child within!
Q: What is
A zipline tour allows guests to fly through the trees on 6
different cables. Participants will also maneuver up ladders and
over bridges to the next zipline take off deck. The longest
cable line is 600 feet and our tallest take off deck is 68 ft.
in the air! Our course is a fun adventure and safety is our top
priority! The cables and trolley system allow people to ride on
a harness, traveling great distances and heights soaring from
tree to tree. The state of the art course has been thoroughly
inspected. Our guides are extensively trained and guests wear
harnesses, helmets & gloves while ziplining.
Q: When does Ziplining operate?
The ziplines and the island will be open during all daylight
hours during peak season. See reservations to confirm tour times
Q: Do I need a reservation?
If yes, how early do I have to book?
Yes! Reservations are necessary to make
sure our staff is in place and the boats are ready to whisk you
off to our island paradise. Spots are filled on a first-come,
first-served basis. This means that sometimes you can call the
day before and get a spot, and other times, our calendar is very
booked and calling weeks ahead would be necessary! So, if you
have your heart set on a certain day/time or if you have a large
group, the earlier you call, the more likely you will get your
choice spot! But if you want to go the same day or the next day,
don't hesitate to call, there just might be availability!
Reservations are held with a credit card.
Q: How long does it take?
A tour takes between 2 – 3 hours depending on how large your
group is. This time frame includes the time needed for check-in,
your boat ride to and from the island, and your zipline tour.
The island is available during daylight hours for you and your
family to enjoy.
Q: What does it cost?
Q: Are food and snacks available?
Light snacks and beverages are available in our office to take
with you or purchase at the end of your tour. There are no
concessions available on the island.
Q: Are there bathrooms?
Yes. Though we are in a remote setting, there are facilities
available on the island.
Q: What if it rains?
We zip rain or shine.
Q: Do I do this myself? How do I land at the next
The tours are fully staffed with friendly experts. All
are equipped with a braking system and a tour guide will be
waiting for you to help you land and send you off onto the next
Q: What should I bring?
You will be out in a camp type setting. Wear comfortable camping
attire that you’re not afraid to get a little dirty! Here are a
few things we suggest:
Athletic type shoes are required; you will not be able to
participate in flip flops or open toed shoes.
Gloves are available, but you may bring your own if desired.
Harnesses go on the upper leg, so most people are most
comfortable in longer shorts that are not overly baggy. You can
also wear knee or full length pants if you prefer.
Optional items to bring: water bottle, sun block, sunglasses,
beach towels, etc. There are small lockers available for your
use while ziplining. Our transportation boat and lockers have
limited space so please limit it to 1 small bag per group.
Do not bring (or wear) bug repellent with deet. Deet melts
nylon, which our harnesses are made out of. Deet-free bug
repellent will be available for purchase in our reservations
Do not bring your valuables; Treehouse Island employees are not
responsible for lost or stolen items.
Do not bring alcoholic beverages.
Most importantly, bring your positive attitude, ready to
have some fun!! Curmudgeons will be returned to the mainland.
Q: How safe is zip lining?
Safety is our first priority! Zipline guides have been
extensively trained and our course has been inspected and
cleared by experts in the zipline industry. The course and
equipment are thoroughly inspected on a daily basis. Guests are
attached to cables/ropes the entire time they are in the trees.
Participants will ALWAYS be attached to the safety system
throughout the entire course until they are safely on the ground
after the final zipline. We have multiple backup systems to
ensure your safety on our course!
Q: Can anyone
Zipline? What are the physical
Due to the nature of the tour, guests must be in reasonably good
Activities will require moderate physical exertion,
including walking across rope bridges and climbing up ladders.
Minimum age is 10. Children between the ages of 10-17 must be
accompanied by an adult (adult can be on the zipline tour or on
the island with a day pass).
Weight minimum is 70 lbs. and
maximum is 250lbs (participants will be weighed discreetly prior
to the tour).
This course is not recommended for those
uncomfortable with heights.
People with chronic back pain or shoulder problems
are cautioned against ziplining
People with the following conditions
can NOT participate in the Zipline Tour:
All guests will be required to sign a
release waiver before participation. Treehouse
Island employees have the right to exclude anyone from
participation for medical, safety, or any other reason.