National Marine Week UK

Celebrating the UK's seas, shores and marine wildlife — 25 July to 9 August.

Get involved Shore & Rockpool Survey Checklist Explore UK marine observations

Participation certificate

Download a PDF certificate. Enter the name that appears on your iNaturalist observations.

Certificates will be available after Marine Week ends.

Live marine observations from the UK · National Marine Week 2026

2026-07-25 → 2026-08-09Updated: never Refresh mapWe prefer iNaturalist — that's what we use

Observations

—

NMW 2026 · 2026-07-25→2026-08-09 · never

Species

—

NMW 2026 · 2026-07-25→2026-08-09 · never

Observers

—

NMW 2026 · 2026-07-25→2026-08-09 · never

How to contribute in 60 seconds

🌿 iNaturalist (recommended)

Create a free iNaturalist account and install the mobile app.
Take a clear photo of the marine species — in a rockpool, from a boat or snorkelling. Note date and location (GPS auto).
Upload it and tag observations for “National Marine Week 2026”.

Go to iNaturalist

Bioblitz

🐚 Join the National Marine Week iNaturalist project

Add your marine observations to the official National Marine Week project on iNaturalist so they count toward the bioblitz. Any observation you make in the UK between 25 July and 9 August will be included automatically once you join.

Join the project

Map

Marine observations pinned across the UK.

Explore

How to Survey

Rockpool, snorkel and shore survey techniques.

Learn

Field Guide

Marine species recorded in UK waters.

Browse