Hilton Denver City Center
1701 California Street
Denver, CO 80202

The Hilton Denver City Center is a beautiful hotel in downtown Denver, Colorado, offering panoramic views of the Rocky Mountains and the city skyline. CLEAN WATERWAYS will take place at the Hilton Denver City Center and it is also the host hotel for the Conference.

Located in the heart of the Mile High City, this upscale Denver hotel is situated in close proximity to the business, shopping, and entertainment districts, and is blocks from 16th Street Mall, Larimer Square and Coors Field, with easy access to the city’s top attractions.

Rate: $195/night + taxes
Cut-off date: March 11, 2023
Cancellation Policy: Please cancel 72 hours before arrival date to avoid one night room and tax charges.


Self-parking: $34/day – located at 1820 California Street
Valet parking: $54/day


United Airlines
We are pleased to partner with United Airlines for air travel to our upcoming event.

Visit travel and enter the Z code & Agreement code (no space) in the Offer Code box. Discount will be applied at time of ticketing. Discounts are not permitted on Basic Economy fares, which include Passenger Types EOU / ERU / ERS /ERT

Z Code: ZMPK Agreement Code: 918982

United Meeting & Group Reservations (US and Canada):

Call United Meetings Reservations: (800) 426-1122

7:00 a.m. – 9:00 p.m. CST M-F

7:00 a.m. – 5:00 p.m. CST S-S

Delta Air Lines
Delta Air Lines is pleased to offer special discounts for CLEAN WATERWAYS

Please click here to book your flights.

You may also call Delta Meeting Network® at 1.800.328.1111* Monday–Friday, 7:00 a.m. – 7:30 p.m. (CT) and refer to Meeting Event Code  NM27R

*Please note there is not a service fee for reservations booked and ticketed via our reservation
800 number.


  • Go Kayaking in Confluence Park
  • Hike and Bike at Red Rocks Park
  • Walk the Mile High Trail in City Park
  • Zoom Through the City on a Scooter
  • Set Sail in a Pedal Boat on Washington Park’s Smith Lake
  • Explore Natural Wonders at Denver Botanic Gardens
  • Cheer on the Avalanche Team (Colorado Avalanche vs. Edmonton Oilers Hockey Game Tuesday, April 11 at 7:30 PM local time)

For more information and fun adventures in Denver visit