Environmental campaigner Glenn Morris will speak at University of New England on Tuesday, ahead of a documentary screening about the movement to protect the ocean.
The Map to Paradise is the work of film makers Danielle Ryan and James Sherwood who recently travelled with Mr Morris on his ride from Glen Innes to Uralla.
While the film, which took three years to shoot, has a focus on the global effort to protect the seas, Mr Morris will speak about its relevance to inland areas, and also take questions from the audience.
Mr Morris first worked with Ms Ryan and Mr Sherwood when he was among farmers on horseback who joined a protest that marched on Parliament House in Sydney last year to urge environmental sustainability.
Since late last year, the pair's 95-minute feature film has been screened at international film festivals, as well as some coastal communities.
It delivers a colourful collection of character-driven stories that convey the quest of individuals, communities and nations who are doing what they can to protect the last wild and pristine marine places on Earth.
Among them profiled in the film are a prince, a president, a pirate and also an island chief.
Watch the trailer of The Map to Paradise:
Ms Ryan said the release of The Map to Paradise had been very timely as global talks are taking place for a treaty to protect the high seas.
"Countries around the world are currently looking to re-map, re-zone and re-write the rules on a global and local scale - an exciting new protection paradigm for Nature in an age where humans are the primary cause of a massive loss of species," Ms Ryan said.
The film makers travelled on a shoestring budget, covering six continents, to make the documentary, visiting Antarctica, the Phillipines, Palau, the United States and Europe.
Along the way they received some high profile support, with American actor Martin Sheen becoming an advocate for the film.
Ms Ryan said they noticed at the private test screenings of The Map to Paradise that the dream of protecting a patch of sea really resonated with people.
"If you have ever dipped your head underwater in a marine sanctuary, in an area such as on the Great Barrier Reef, you will marvel at how much fish life there is inside the sanctuary compared to where there is no protection at all.
"This makes the quest to protect the sea a beautiful subject to explore from the perspective of a documentary-maker, because at the end of the journey, there can be wondrous results - if we do it right," she said.
- Tuesday's screening of The Map to Paradise at UNE, in Arts A1 lecture theatre, doors open at 6.30pm. Tickets are available online here or at the door.