#WorldHydrographyDay
🗺️ It's #WorldHydrographyDay and we are celebrating a major milestone:

27.3% of the world’s ocean floor has now mapped to modern standards.
June 21, 2025 at 7:50 AM
It’s the longest day of the year, so there’s time to celebrate today's events👇

☀️ #SummerSolstice: Recognizing the effect of Earth's tilt on the seasons!

🌊 #WorldHydrographyDay: The science of describing oceans, lakes, & rivers!

👨 & Happy #FathersDay to all the dads out there!

Photo: Isaac Sloman
June 21, 2026 at 1:59 PM
Happy #WorldHydrographyDay! Thanks to all, especially to our hydrographic survey vessels in the NOAA fleet, who ensure we have data for safe navigation, a sustainable blue economy, and informing decisions from the coast to the seafloor. 🌊
IHO World Hydrographic Day 2025
YouTube video by IHO
www.youtube.com
June 21, 2025 at 7:37 PM
📢 As we mark #WorldHydrographyDay and celebrate the role of #hydrography in improving our understanding of the ocean, we're pleased to share the new dates for the Seabed 2030 Indo-Pacific Ocean Mapping Meeting & Data Sprint:

📅 20-22 October 2026
📍 Kuala Lumpur, Malaysia
June 21, 2026 at 10:40 AM
Happy World Hydrography Day! We salute hydrographers who map our waters, ensuring safe navigation for all vessels. Their work protects lives, trade, and our oceans. #WorldHydrographyDay #SafeNavigation #OceanMapping #CareerBeacon
June 21, 2025 at 6:55 AM
13/ Other hashtags to follow TODAY ( June 21st 2026 )

#WorldGiraffeDay

#WorldHumanistDay

#WorldHydrographyDay

#WorldMotorCycleDay

13 of 13 #SundayHashtags
June 21, 2026 at 8:14 AM