MacroDivers.com

Discovering, photographing, identifying and learning about nudibranchs and other extraordinary marine life from the Coral Triangle and beyond.

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 super fan with a sharp eye for the tiny details most divers swim past.

The site is all about nudibranchs and the wider world of macro diving: what they are, how to identify them, where to see them, how to photograph them and how to become a better, safer and more thoughtful diver while doing it.

You will find practical guides on nudibranch behaviour, food sources, anatomy, life cycles and identification, alongside destination notes from macro-rich dive locations, TG-7 and strobe setup advice, macro photography techniques, buoyancy skills, camera awareness, responsible muck diving and diving safety.

MacroDivers will continue to grow. We are building towards a dedicated nudibranch database and plan to expand beyond nudibranchs into other fascinating macro creatures such as frogfish, shrimp, crabs, seahorses, pipefish, octopus and the many small animals that make slow diving so rewarding.

Small green nudibranchs photographed on algae for the MacroDivers home page introduction — Small subjects. Big stories. MacroDivers is built around the tiny marine life that rewards slow, careful diving.

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

The Small Wonders of the Underwater World.

A collection of nudibranchs, reef life and underwater macro photography from our travels around the world

Explore the MacroDivers Academy

The Academy is the educational heart of MacroDivers.com. It brings together practical diving skills, underwater photography techniques, nudibranch education and marine life guides for divers who want to find, photograph, identify and protect the small wonders of the underwater world.

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

Our journey so far

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

Species Database

A future nudibranch identification resource

The first version starts as a curated gallery. Over time, Di’s nudibranch database can grow into searchable species pages with names, locations, behaviour notes, ID confidence and comparison images.

Planned fields

Common name, scientific name, animal group, location, depth, notes and identification confidence.

Underwater Photography Gear

My Camera Setup and Recommended Settings

A detailed guide to the camera equipment and settings I use for underwater macro photography, including the Olympus TG-7, Backscatter Mini Flash 2, and practical techniques for capturing nudibranchs, seahorses, frogfish, and other fascinating critters.

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. After meeting on a Blue Ocean Diving trip to the Philippines in 2024, they began travelling together to photograph nudibranchs, seahorses, frogfish, shrimps, cephalopods and other small wonders of the underwater world, with a strong focus on the Coral Triangle and other tropical dive destinations.

Read our full story

Contact & Social

Follow the journey

For questions about diving, underwater photography, MacroDivers or future collaborations, contact us directly.

Andrew: [email protected]
Di: [email protected]

Instagram: @AGScuba
YouTube: @AGScuba
Di: Instagram @Nudibranch.divers

Created by Andrew Grundy and Di Syrett.