Etta Halliday spends the week looking at how nature shows off at this time of year. Today, Mark Patterson gets up close and personal with whales and sharks in Northern Ireland.

Etta Halliday takes a trip to Minnowburn Beeches on the outskirts of Belfast, and Prof Valerie Hall talks about the fantastic displays of wildflowers you can see this spring.

The wonderful ancient woods of Correl Glen, Fermanagh feature in today's programme along with the slimy but fascinating world of snails and slugs.

Etta Halliday's on the trail of bees, wasps and flying things today, and there's a 'holy' hunt for a peregrine falcon.

Have you ever sat in your garden at night and just listened to those sounds that come with darkness? Magic! And Etta Halliday listens to the dawn chorus.