Find, photograph and understand the small life most divers swim past.

Created by Andrew Grundy and Di Syrett from our own dives, photos, field notes and teaching experience.

Open the Academy guides See our dive destinations

About MacroDivers

Exploring the small wonders of the underwater world

MacroDivers is an underwater macro photography and diving education site created by Andrew Grundy, a PADI Master Instructor, and Di Syrett, a nudibranch enthusiast with a sharp eye for the tiny details most divers swim past.

Explore our practical Academy guides, macro-rich dive destinations, nudibranch identification project, TG-7 camera setup tips, and slow, careful diving techniques.

Small green nudibranchs photographed on algae for the MacroDivers home page introduction — Small subjects. Big stories. Our photos, our dives and our notes.

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Choose your route into MacroDivers

Destinations Plan slow dives in macro-rich places across the Coral Triangle and beyond. Academy Build better macro diving, photography and identification skills. ID Project Follow the growing nudibranch species database and identification work. About Us Meet Andrew and Di and the story behind MacroDivers.

Underwater macro photographyMacro photography is photographing small subjects such as nudibranchs, shrimps, frogfish and pygmy seahorses at high magnification.

Photographs from dives where we slowed down

A collection of nudibranchs, reef life and underwater macro photographs from our travels, with captions and credits kept close to the images.

Explore the MacroDivers Academy

Practical guides for divers who want to slow down, improve their buoyancy, take better macro photos and understand the marine life they are photographing.

Visit the Academy

Nudibranchs

Learn about nudibranch anatomy, life cycles, behaviour, identification, habitats, food sources and the fascinating details that make these sea slugs such popular macro subjects.

Photography

Improve your underwater images with practical guidance on TG-7 settings, lighting, strobe use, composition, eye-level photography and responsible macro techniques.

Diving Skills

Become a better macro diver with guidance on buoyancy, trim, buddy awareness, air monitoring, fin control and protecting delicate muck diving habitats.

Marine Life

Discover frogfish, seahorses, shrimps, octopus, crabs, pipefish and other remarkable macro subjects found across the world's best dive destinations.

Destinations

Macro diving destinations we are exploring

Field notes, photos and practical macro-diving context from the places shaping MacroDivers.

Travelled October 2025 With Blue Ocean Diving, part of their world tour program Mozambique

Part one of Critters and Kings trip to Indonesia November / December 2025 Raja Ampat

Part two of Critters and Kings trip to Indonesia November / December 2025 Ambon

Travelled January 2026 Solitude Acacia Resort Anilao

Coming Autumn 2026 Lembeh Strait & Manado

View Destination Guides

Species Database

A growing nudibranch identification project

We are building Di's nudibranch records into a practical identification resource with names, locations, behaviour notes, ID confidence and comparison images.

View the ID Project

What it will include

Common name, scientific name, animal group, location, depth, notes and identification confidence, starting with nudibranchs and expanding carefully as the records are cleaned up.

Underwater Photography Gear

My Camera Setup and Recommended Settings

The camera equipment, TG-7 settings and lighting approach I use for nudibranchs, seahorses, frogfish and other small subjects.

Olympus TG-7 underwater camera setup with Backscatter Mini Flash 2

Olympus TG-7 Macro Photography Setup

Discover the exact settings, accessories, and techniques I use to get sharp, colourful macro photographs underwater.

View Full Camera Guide

About Us

Andrew & Di

MacroDivers was created by Andrew Grundy and Di Syrett to share their passion for underwater macro photography, dive travel and marine life identification. The site brings together Andrew's teaching background and Di's nudibranch focus into practical guides for thoughtful macro divers.

Read our full story