Have you heard about Fjellveien in Bergen? This is a very popular road for Sunday hikes, situated just above the very center of Bergen.
You can get up here by the very popular funicular from the center of Bergen, get off at Fjellveien. You can also walk up here, little steep but quite easy.
From this point you have several options on where to walk, either further up or an easy walk along the mountain side. It is up to you 🙂