More than a third of all visits to Cornwall have been triggered by television dramas like Doc Martin or Poldark.
The research by Visit Cornwall said the series had a significant influence on decisions to visit the county.
94% of those who took part in the survey said they wanted to visit the landscape and scenery showcased in the productions.
The Eden Project in Cornwall has been rated one of the 500 best places to visit in the world.
Travel guide Lonely Planet has put the iconic biomes at number 281. The number one spot was taken by the temples of Angkor in Cambodia.
The Ultimate Travelist is being published today, and has a reputation as a dream to-do list for many travellers.
The sun seems to be shining for tourism in Cornwall. The official online guide to visiting the county had a record-breaking half a million hits last month.
VisitCornwall.com says that's a huge increase on last year. Popular searches on the site were places to stay, things to do and local events - good news for local business and the region's reputation as a top summer destination.
The Duke and Duchess of Cornwall have completed a busy schedule of visits to the county, visiting all parts of the Duchy over the past three days.
The last day of the tour included a visit to Fistral Beach in Newquay.
Here they were shown how the marine litter which regularly washes up on our shores is now being recycled.
The Prince also had a close encounter with two giant creatures from the sea during the visit.
Steve Hardy reports.
It's the final day of the Duke & Duchess of Cornwall's visit to the Duchy and today they're at Fistral Beach, Newquay. They're seeing how local charities are tackling litter on our coastline.
The Duchess of Cornwall stops for a picture with 'Larry the Lobster' and 'Sally the Starfish', who are environmental campaigners from the Marine Conservation Society.
The Prince of Wales and the Duchess of Cornwall are continuing their tour of the Scilly Isles by visiting St Agnes.
Prince Charles and Camilla are currently taking part in their annual summer annual tour to the region.
With the focus of their three day visit on the region's tourism industry.
Prince Charles and Camilla were entertained by pupils from St Agnes school, who performed the famous story of St George slaying the Dragon for them in the sunshine.
They also visited the Island Fair where they were introduced to some local wildlife.
The Duke and Duchess of Cornwall are spending a second day in the county today.
They're focusing on the tourism industry and local communities during this year's visit - stopping in Padstow in North Cornwall yesterday, meeting RNLI volunteers and visiting a restaurant run by celebrity chef Rick Stein. Today the royal couple will be on the Isles of Scilly, stopping by a local island fair on St Mary's.
Prince Charles is on his annual summer visit to Cornwall - and couldn't avoid an "I'm a celebrity" momentRead the full story ›
David Cameron is today expected to announce a £5 million investment in tourism in the region.
The move has been welcomed by the VisitEngland Chief James Berresford who said the five point plan to support tourism growth across the UK was further recognition of the enormous value and contribution of the industry.
Placing tourism at the heart of Government will do much to support plans to rebalance the economy.
We have invested £57m of Government funds in English tourism over the past five years which has to date generated over £1.5 billion growth in visitor spending and created over 28,000 jobs.
We aim to build on this success with both the Northern and South West Tourism Growth Funds, and the proposed Product Development Fund recommended in the Triennial Review of VisitEngland.
As part of a £5million South West Tourism Growth Fund announced by Government, a range of activity will take place to grow tourism, deliver economic growth and boost export earnings in the South West of England.
Our ambition for the South West Tourism Growth Fund is to work closely with VisitBritain and partner destinations to create an additional visitor spend of £60 million, supporting the creation of 1,000 jobs to boost the South West visitor economy.
A tourism business owner says the so-called Gove Effect is forcing her to sell off her holiday cottage.
Sarah Kitson from Lamerton near Tavistock says tougher rules where parents are fined for taking children out of school have had a drastic impact on holiday bookings.
It used to be from Easter til October we'd be fully booked but now we've got huge gaps. I've just had three weeks gap in a holiday cottage in Newquay, and it's just not worth keeping the holiday cottages running anymore as a holiday let business.
The rules brought in by Former Education secretary Michael Gove in 2013 mean parents can be fined £60 a day for taking their children out of school to go on holiday, or even prosecuted for it.
A recent report by the Tourism Society Westcountry said it's costing the industry £87 million a year.
The Tourism Society Westcountry and Visit Cornwall now calling for holidays to be staggered like in other European countries.