Queen Of Mantas

Bespoke tours with manta rays all over the world

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“Making a difference out in the field and playing an active role in the protection of our oceans is a rewarding and life changing experience.”
-Andrea Marshall

Most people that love the ocean dream about playing a more active role in education, research or conservation. Who wouldn’t want to get more involved in something that they are passionate about? To that end Dr. Marshall has always encouraged that people take a proactive approach to their travel or ocean hobbies.

Demand from her supporters, combined with the need to fund her international research, has inspired Andrea to create ‘Ray of Hope Expeditions’. Each year the Queen of Mantas and other senior scientists from the Marine Megafauna Foundation embark on international expeditions to the world’s foremost manta ray aggregation sites to engage in field research and conservation.

Explore new aggregation sites with us, encounter mantas in remote destinations, photo-document manta rays for upload to Manta Matcher, participate in research activities, investigate manta ray fisheries and receive lectures from world-class biologists as a part of your package. The goals of each of the expeditions are unique but every trip is tailored to engage participants while producing high quality science.
To download the 2016 ROHE brochure, click here >


Follow our expeditions as they unfold and get trip updates on our ROHE Facebook page


ROHE mantas





Raja Ampat, Indonesia (Successfully Completed)
Join the MMF team in January 2017 at their research base in Raja Ampat as they explore the Arborek region of the Bird’s Head Seascape in search of manta ray aggregations. This is one of the most exciting destinations for manta rays in the world and the expedition includes dives to well known cleaning station and feeding areas for both species of Manta.

To see the itinerary, click here >


Raja Ampat, Indonesia (Successfully Completed)
Join Andrea on her quest to find both species of manta within the Bird’s Head Seascape! Choose from two exciting expeditions to Raja Ampat in February 2017 on the luxurious Arenui Boutique Liveaboard.

To see the itinerary, click here >


Thailand & Myanmar (Successfully Completed)

Join Andrea, Janneman and Ric Parker as they follow the path of the giant manta rays through the Similan and Surin National Parks in Thailand and the Mergui Archipelago, Myanmar!

To see the itinerary, click here >


Wild Coast, South Africa (Successfully Completed)

Join Andrea and Janneman in June 2017 as they head to the Wild Coast of South Africa on this megafauna adventure of a lifetime. Join the team on the sea and in the air as they try to find out more about giant mantas at their most southerly aggregation site in Africa. The trip will run during the Sardine Run giving guests the opportunity to simultaneously experience all of the action and excitement of the run while engaging in top quality scientific research.

To download the itinerary, click here >




Revillagigedo Islands, Mexico (New Itinerary- Trip Fully Booked)
Join Andrea, Janneman, Rodrigo Friscione and team in April 2018 as they explorer the Revillagigedo Islands documenting giant manta rays. The remains one of the most exciting places in the world to interact with mantas and the individuals in this region are some of the most curious and playful in the world. April is still humpback whale season so in addition to manta rays, a variety of shark species including hammerheads and other big pelagics we can expect to see and interact with whales which come to the islands to give birth to their calves. One of Andrea’s favorite destinations on earth, a trip to the Revillagigedos should be on every diver’s bucket list!

To download the itinerary, click here >