The countdown is on for a tree-mendous national record-breaking attempt tomorrow – and Pembrokeshire people are invited to join in the fun.

Pembrokeshire Coast National Park Authority will be one of hundreds of organisations across the UK taking part in the BBC Breathing Places Tree O’Clock event this weekend.

Volunteers are sought to help the authority’s teams plant 3,000 trees in the attempt to break the Guinness World Record for planting the most trees in multiple locations in one hour.

Tree O’Clock is from 11am to noon on Saturday at four locations across the national park: near Gumfreston, Solva, Moylegrove and the Gwaun Valley. Volunteers will need to arrive at their location at 10am.

The authority’s woodland officer Celia Thomas said: "We need a minimum of 20 people helping at each location for the record attempt.

"So if you fancy an hour (or more if you can stay on to help stake and protect the trees afterwards) of fun and fresh air we want to hear from you."

Trees will be native species to enhance each locality.

Some of the trees have been provided by the Woodland Trust as part of its national MOREwoods programme encouraging landowners to plant native trees with advice, help and, in exceptional cases, funded trees.

The event is part of the BBC Breathing Places project asking people to ‘do one thing’ for nature.

The aim of Tree O’Clock is to plant one million trees in one hour, to beat the current record of 653,143 trees planted simultaneously, which was set in 2006 by more than half a million people in the Philippines.

If you want to help with the record-breaking attempt, you can register by calling the national park authority on 0845 345 7275, stating your name, your preferred location, email address and phone number.