Your Expert Maui Bio Guide
I'm Marc — a biologist, farmer, and Maui local with 23 years of experience driving these roads, working the land, and learning this island from the inside out. working for the national park ,with the native birds has inspired me to name the company after one of my favorite native birds I'iwi, the scarlet honey creeper.
Most tours show you Maui. I help you understand it.
As the island's only biologist-led guide, I connect what you're seeing — the plants, the birds, the lava, the coastline — to the deeper story underneath. Every tour is 100% private, built around what you're curious about, and paced the way you want.
I've spent two decades farming native Hawaiian species, as well as other edible, medicinal and ornamental plants, studying all the ecosystems from mountain to ocean (mauka to makai), and exploring every corner of this island. When you're with me, you're not following a script. You're getting Maui the way most visitors never do. being a tour guide allows me to bring all that I have learned over the last 2+ decades to my guests
Every I'iwi Adventure Tour is 100% private, led by a biologist and botanist with 23 years on the island. No crowds, no scripts just Maui as it actually is. I have spent 23 years studying Maui's ecosystems, it's volcanic geology, it's native birds, and hidden valleys. When you book a tour, you're not joining a group — you're getting a private guide who knows this island at a level most people never encounter. Door-to-door pickup from your hotel or villa. Completely customized to your group.
Guided by Science and Island Wisdom
Biologist Led
We are Maui's only botanist and biologist, led tours
Pono Practice
Specialized knowledge allows us to protect rare flora, teaching you to walk with respect for our ecology.
True Science
Beyond local lore, we provide deep educational insights into the evolution of Maui's species.
Island Soul
My life is intertwined with this mountain. By combining my background in botany and biology, with my decades on Maui, I provide an experience that is safe, informative, and respectful. I don't just show you the rainforest; I explain how it breathes, how it survives, and how we can protect its future.
A UNIQUE PERSPECTIVE
Expert Science. Local Connection.
Join the Trek
Book your private, biologist-led rainforest adventure. Expect a deep dive into the botanical wonders of Maui with a guide who truly knows the land.