The cathedral is in the centre. We had a bus run us to the centre from where our ship was. It’s too far to walk. Once in the centre there is not a lot there, use google maps if you can’t find the church. But it’s really not hard, it’s a small town. If you are in Alta to see the northern lights you need to be there at the right time. The lights are only seen in winter. Dress warm and enjoy yourself, but don’t expect to see the lights if you’re visiting in summer. We booked to see the northern lights with an excursion company. Nobody can guarantee you will see the lights but the company we used had a few locations so took us to where the lights were on our night. It was a magical evening watching the Aurora then drinking hot chocolate in front of a fire in a teepee sitting on reindeer skin rugs. Expensive but worth it.

Hi It's very close, 5 to 10 minutes maximum. It took us about 10 minutes but we were walking on deep, slippy snow and ice in winter, so I guess 5 minutes should do it easily! From what I remember, the steeple was visible from the TI office. Have a great trip!