Dive Instructors


Owned and Operated by Divers, for Divers

Tiny Bubbles Scuba started at The Ka’anapali Beach Club back in 1998, at the time it was called The Embassy Suites Resort.

Located in Honokawai, “West Maui” HI, we cater to the scuba diver who wants to dive in small groups with an experienced and knowledgeable guide to show them all that Maui has to offer underwater.

At Tiny Bubbles Scuba we specialize in taking our time, going slow, and doing whatever we can to make your dive experience as enjoyable as possible.  We are a “YES” company, striving to exceed your expectations!

Tiny Bubbles Scuba instructors are all PADI and SDI instructors with over 30 yrs. experience in Scuba Diving Around The Globe.

Our motto is: “LET’S GET TANKED” – We are Always Available, We will do what we can to get you underwater!


Scientific Name: Timothy Madaras Rollo
Common Name: “Timmerz”

White Mouth Moray Eel & Timmerz

White Mouth Moray Eel & Timmerz

Hawaiian Name: Kimokeo

Where commonly found:
20′-40′ deep with my head in a hole trying to kiss an Eel or dig out a Tako (octopus)

Habitat and Behavior (Interests, Hobbies, Likes, Dislikes, Etc.):
Like : Scuba (of course), Sailing, Photography, Hiking, Swimming (anything to do with water), Cold Beer, Pizza, Manicotti, Enchiladas, Movies, and LOVE LIFE !

Do Not Like :
Broccoli, Runoff into the ocean, pollution – All kinds

Distribution (Where Have  Been Scuba):
Channel Islands (AnaCapa, Santa Catalina, San Clemente, Santa Barbara), So. California Beaches, Santa Barbara – Oil Rigs, Hawaii, Maui, Lanai, Molokai, Molokini, Kauai, Niihau, Mexico(Cozumel, Playa Del Carmen, Loreto-Baja, Cancun, Tulum-Mayan Riviera), Cayman Islands (Grand Cayman, Little Cayman, Cayman Brac), Honduras (Utilla, Roatan, Cayos Cochinos, Guanaja), Costa Rica, Belize, Fiji, Solomon Islands, Burma and Thailand…

I am an only child that was raised in the Dive shop and out in the water (mostly underwater). Born in Los Angeles and then moved to Santa Catalina Island when I graduated High School. I went on a 3 week vacation in 1995 to Maui and have never left. I feel the closest to myself and closest to the world way out here in the middle of the Pacific. IT’S HOME!

Favorite Marine Life: OCTOPUS
Favorite Movie: The Breakfast Club or Weird Science

Certifications -Padi:
O/W, Adv. O/W, MFA(EFR), Rescue, Divemaster, O/W Instructor, MFA Instructor, Specialty Instructor : Night, Deep, Navigation, Wreck, Scooter, Kayak, Multilevel,  U/W Photographer, Nitrox, Semi-closed Rebreather, Equipment Technician, Master Scuba Diver Trainer, IDC Staff Instructor,  Emergency First Response Instructor.

Certifications – SDI/TDI:
O/W Instructor, Specialty Instructor : Nitrox, Solo Diver, CPR 1st Aid, Computer, Nitrox, Gas Blender, Diver Propulsion, Buoyancy, Deep, Night-Limited Visibility, Wreck, U/W Photography.

Scientific Name: Robert Alan Groh
Common Name: “Animal”
Hawaiian Name: Lopaka

Where commonly found:
20′ to 30′ deep at the Sea Turtle cleaning station

Habitat and Behavior (Interests, Hobbies, Likes, Dislikes, Etc.):
Like : Surfing, Hiking, Bowling, Movies, Skiing, Photography

Do Not Like : Speedo’s or Litter

Distribution (Where Have Been Scuba):Maui , Lake Stockton – Missouri

The youngest of three brothers and sisters, moved to Maui in 2000

Favorite Fish: Frog Fish
Favorite Invertebrate: Octopus
Favorite Movie: Usual Suspects

 O/W, Adv. O/W, MFA, Rescue, Divemaster, O/W Instructor
SDI: O/W Instructor

Scientific Name: Marcia Lynn Rollo
Common Name: “Pancake”
Hawaiian Name: Malakia

Where commonly found: Sea level

Habitat and Behavior (Interests, Hobbies, Likes, Dislikes, Etc.):
Scuba(of course),  Hiking, Swimming (anything to do with water), Cooking, Enchiladas, Movies, and LOVE LIFE!

Do Not Like : Tomatoes 

Distribution (Where Have  Been Scuba): Only Hawaiian Islands

I am the oldest of five children and grew up mostly in Arizona. Obtained my Bachelor’s degree in Molecular and Cellular Biology and worked as a scientist for about 8 years.  Decided it was time for a change and moved to Maui in 2001 where I met my husband and the rest is history.

Favorite Marine Life: Moorish Idol
Favorite food: Mac and Cheese
Favorite Movie: Duets

Scientific Name: David Simerson
Common Name: “Foxxxy”
Hawaiian Name: Kawika

Where commonly found: 25′-35′ deep

Where Common Found : Usually on the West side of Maui teaching on the pool deck or in the ocean. When I’m not working I try and stay in the shade.

Habitat and Behavior : Like: Clean clear water, I love good visibility. I like to be able to see my divers at all times, and it makes for better u/w photos. I also like Cooking, Surfing, playing PlayStation 3 Call of Duty, and watching Movies.

Do Not Like: Low Air Fills, uncharged batteries, grumpy people, messy pool deck (I’m a little O.C.D. but I think this is a good thing with my job; it helps to be organized for safety).

Distribution (Where have been Scuba): Southern California and Maui, Molokini, Lanai, Molokai

Description: From Chicago, Illinois

Favorite Marine Life: Octopus, Frogfish, Stonefish. I really like marine life that blends in well with their environment.

Favorite Movie: To many to list.

Certifications: PADI and SDI O/W Scuba Instructor

Scientific Name: Matthew Gewald
Common Name: Matty G.
Hawaiian Name: Makaio

Where commonly found: On the beach or in the Blue!

Habitat and Behavior : Live Music, Hiking, Bowling, Swimming, Whale Watching, Indian Food, Traveling, SCUBA, Old Volkswagens

Do Not Like: Litter, Grumpy People, Negativity

Distribution (Where have been Scuba): Cancun, Puerto Vallarta, Bahamas, Figi, Maui, Molokini, Lanai, St. Martin

Description: Youngest of 3 Gewald brothers, my father introduced me to Scuba over 15 years ago. Moved to Maui in 2005 and became a Scuba Instructor to help others enjoy what I love.

Favorite Marine Life: Nudibranch, Jellyfish, Turtles

Favorite Movie: Braveheart, Hook, Dazed and Confused

Certifications: PADI O/W Scuba Instructor (and soon to be SDI O/W Instructor)