Around 12 million people visit Wales' national parks each year, spending around one billion pounds in the process, according to a new report out today.
The 'Valuing Wales' National Parks' report found that 50 of our most visited attractions are in national parks, and concludes they have a huge impact upon the economy and the lives of people in Wales.
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Most places will see a dry, bright day with patchy cloud but also some warm sunny spells, and it'll be less breezy than on Friday.
Members of the RMT union are walking out for three days from today in a row over new trains causing disruption to bank holiday services.
The Bank Holiday is here! Which is usually a recipe for wet weather! Yes, we will get our fair share. But it's not all doom and gloom!