Think I can't make 26th as have just checked work diary and have a meeting in deepest darkest Camborne!!! So even annual leave can't save me now! But...if the weather is nice there is always the Hoe, views out across the sound, grass and benches to sit on, down the 5 million steps there is a little ride-on train....there are ice cream vans every 100 yards, coffee stands etc. You will be able to see the infamous tinside pool - which has been refurbed and looks quite tempting in sunshine! May not actually be open in april though - brrrrr! The Hoe is about a 15 minute walk from the station, 5 from city centre.
If it's wet or cold...nothing springs to mind!