Arihia lives in Opotiki and has worked in travel and tourism for both the private and public sectors. This includes working for the Inbound Tour Operators Council, Maori Arts & Crafts Institute and United Travel. Arihia has also worked for a number of Maori development organisations including; Waipareira Trust, Manukau Urban Maori Authority and Whakatohea Maori Trust Board.
Nowadays she works as a private contractor in areas such as HR, Economic Development, health and social services. She is a Trustee on Whakatohea Maori Trust Board, Director of Whakatohea Mussels and Whakatohea Fisheries Asset Holding Company and a Director on Raukokore Gold Kiwifruit Development Ltd