To understand the world, you have to go out and experience it. We know destinations because we’ve explored them first hand and we bring that experience to the table with every client we engage. We believe in a culture of collaboration, transparency, honesty and integrity. These values are integral to not only how we run our business, but also our lives.
“If you want to go fast, walk alone. If you want to go far, let’s walk together.” -African Proverb
David DiGregorio | |
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David DiGregorio is the Founder and Managing Director of CornerSun Destination Marketing, advising destination brands across Africa, Europe, Latin America, and the Indian Ocean. Over the past 15+ years, he has played a key role in promoting destinations including South Africa, Norway, Seychelles, Malawi, Guyana, Maldives, Uganda, Kenya, Sierra Leone, Tanzania, Argentina, Peru, Ethiopia, Zimbabwe, Botswana, and Ireland, among others. Prior to founding CornerSun, David served as Head of Marketing & Communications for South African Tourism in North America, where he helped drive a 49% increase in U.S. arrivals and led high-profile global campaigns tied to the 2010 FIFA World Cup. He currently serves on the Executive Board of the Association for the Promotion of Tourism to Africa (APTA) and on the Associate Member Advisory Committee of USTOA. A graduate of Boston University with a Master of Commerce in International Business from the University of Sydney, and holder of a Professional Certificate in Sustainable Tourism from the GSTC, David brings global perspective, strategic discipline, and firsthand destination experience to every partnership. |
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Christina Koontz | |
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Christina Koontz is a senior communications strategist with more than a decade of experience leading public relations and brand positioning campaigns for global tourism boards and lifestyle companies, including the Cayman Islands Department of Tourism, South African Tourism, Hong Kong Tourism Board, Disney Parks & Resorts, and Hard Rock International. At CornerSun, she has played a central role in advancing destination narratives across markets including the Nordics, Malawi, Guyana, Maldives, Kenya, and the Seychelles, overseeing integrated media strategy, executive visibility, press trips, and long-term brand positioning initiatives in the North American market. Christina has secured coverage in leading national and trade outlets such as USA TODAY, The Washington Post, Travel + Leisure, Town & Country, and Skift, while cultivating strong editorial relationships that drive sustained visibility beyond one-off placements. Based in the Greater New York City area, Christina combines strategic discipline, creative storytelling, and strong media instincts to elevate destinations in competitive global markets. |
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Olivia Liveng | |
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Olivia Liveng is a senior publicist and travel journalist whose career spans editorial, broadcast production, and global media strategy across the tourism industry. Drawing on firsthand experience as a contributor to publications including AFAR, Fodor’s, Forbes, and The New York Post, she brings rare insight into how editors evaluate stories and what drives meaningful national coverage. At CornerSun, Olivia leads high-level media strategy for destination and hospitality clients across Africa, Europe, and the Americas, securing placements in top-tier outlets such as The New York Times, Forbes, Travel + Leisure, People, Business Insider, and Good Morning America. Her work extends beyond placements to shaping narrative positioning, executive visibility, and long-term brand credibility in the North American market. Olivia is also co-host and co-producer of Journeys Beyond (Amazon Prime) and previously served as producer and publicist for the PBS series Fly Brother, blending editorial authority with strategic communications expertise to elevate destinations in highly competitive media landscapes. |
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Deborah Droke | |
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Deborah Droke brings more than 25 years of leadership experience in global tourism, with deep expertise across African destinations including South Africa, Kenya, Tanzania, Botswana, Zimbabwe, and emerging markets across the continent. Best known for her executive tenure at South African Airways, she played a central role in positioning South Africa as a premier luxury and adventure destination for North American travelers, cultivating long-standing partnerships with leading tour operators, consortia, and travel advisors throughout the U.S. and Canada. Her international career — shaped by years living in Europe and working across aviation, nonprofit leadership, media production, and destination consulting — gives her a uniquely broad perspective on how destinations grow sustainably in competitive markets. Deborah is a passionate advocate for conservation, cultural exchange, and ethical tourism, helping destinations expand market share while preserving authenticity, community integrity, and long-term value. |
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Sarah Kingdom | |
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Sarah Kingdom is a travel writer, content strategist, and experienced mountain guide whose career bridges frontline adventure experience with strategic destination storytelling. Originally from Australia and long based in Africa, she has guided numerous expeditions on Mount Kilimanjaro and explored remote regions across Tanzania, Kenya, Rwanda, and beyond, developing a deep understanding of conservation-led tourism and emerging destination development. Her writing has appeared in publications including, Forbes, BBC Wildlife, Travel Africa, and Travel + Leisure, and she brings that editorial credibility and firsthand field expertise to her work at CornerSun. As a content strategist, Sarah crafts destination narratives, newsletters, and multimedia campaigns that translate complex cultural, environmental, and experiential stories into compelling positioning for North American audiences. Her work helps destinations articulate not just what they offer — but why they matter. |
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Junko Miyauchi | |
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Junko Yokoo is a Japan-based tourism strategist and nationally licensed English/Japanese Interpreter-Guide who brings deep expertise in destination development, inbound tourism, and international market engagement. Having lived and worked in the United States, Canada, and Australia for eight years, Junko bridges Japanese destinations and Western markets with cultural fluency and strategic insight. Since relocating to Okinawa in 2009, she has worked closely with governmental institutions, tourism authorities, international media, and luxury travel advisors, supporting official study visits, global sporting events, and market-entry initiatives targeting North America, Europe, and Southeast Asia. Recognized by Japan’s Ministry of Agriculture, Forestry and Fisheries and certified as an English instructor by the Japan Tourism Agency, Junko combines policy-level understanding, regional destination knowledge, and on-the-ground execution to help position Japan’s regions effectively for global audiences. |
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