NEWS & EVENTS
All Events Calendar > Special Events
To increase awareness of our island's fresh water and the importance of conservation for sustainable resource management, the BWS periodically hosts special events and contests for our island communities.
-
Imagine A Day Without Water
The Board of Water Supply hosts an annual Imagine a Day Without Water event showcasing city, state, and community booths offering hands-on activities, including a rain barrel display, Xeriscape crafts, and succulent workshops.
-
Annual Unthirsty Plant Sale
Unless otherwise announced, the Honolulu Board of Water Supply hosts its Annual Unthirsty Plant Sale at its Hālawa Xeriscape Garden, at 99-1268 ʻIwaena Street in Hālawa Valley’s Central Park industrial area on the first Saturday in August. Admission is free. Park on ʻIwaena Street and catch a free shuttle to the garden.
-
Water Conservation Week
Get information about Board of Water Supply's 2026 annual Water Conservation Week Poster & Poetry contests and events. These events promote awareness of our island's limited drinking water supply and encourage Oʻahu's youth to become more water-efficient.
-
Detect-A-Leak Week
Mark your calendars for Detect-A-Leak Week, April 13 to April 19, 2025. It's time to detect and repair leaks, often found in toilets, faucets, and irrigation systems.
-
Ka Wai Wednesdays
Think you’ve got conservation smarts? Put your water wisdom to the test and win while helping protect Oʻahu’s most precious resource. Join us on Instagram (@BWSHonolulu) on February 4, 2026, and February 11, 2026, for a fun, fast-paced multiple-choice conservation trivia challenge.
Updated: 01/28/2026