We hope to do some day hikes like Gorner gorge etc in Early May 2017. Will we be able to without encountering too much snow or closures?
Early May is just after the ski season ends. Many trails in higher terrain will not be accessible around that time. The gorge is only open from late June to mid October. The lower trails around the village will probably be fine, but you'd better count on most of the others to be closed. The tourist office will be able to tell you which ones are open.