The National Trust is approaching its supporters with a new campaign as it looks to raise £300,000 to safeguard historic properties and countryside damaged by last year's floods in the Lake District.

The campaign, created by Cheltenham agency TDA, highlights the scale of damage caused when 12 inches of rain fell in 24 hours in the region last November.

It features accounts from National Trust staff and volunteers there at the time and details the charity's immediate and long-term protection plans which it hopes will minimise the risk to local landmarks during future floods.

The objective is to prompt supporters to make a one-off donationa towards the £300,000 target which the charity says it needs to prepare for the likelihood of floods happening again. Some buildings may need to be relocated entirely.

Louise McRae, head of direct fundraising at National Trust, said: "We protect and manage around 25 percent of the Lake District National Park. Many of our supporters take holidays or short breaks in the region, so we know it is close to their hearts and that they are likely to want to help safeguard its future."

She added that the extensive damage to footpaths, dry stone walls and landmark buildings such as Wordsworth House was unprecedented.

"There is still a lot that we need to put right, and we also have to implement measures to minimise risk during future floods," she said.

Clare Siddall, account director at TDA, said supporters will almost certainly have seen images of the floods in Cockermouth on the news, so they should be aware of the impact it had.

"This campaign seeks to build on that awareness and show how financial support can help make a vital difference to the work of the National Trust," Siddall said.