fish in the sea, spinning is easier than fly fishing, you dont need any permits etc and there's usually something to be caught if you go to the right place (that being anywhere with good depth right close in at the shore, giving way to deep water - see
http://webapp.navionics.com/?lang=en and picrelated), you can google up about the kind of fish you might want to target, i'd suggest pollock, saithe, cod maybe at this time of year. once you've picked your species you can google again and check youtube for tackle, techniques etc, plenty good info on it. if you really have to fish lochs, assuming you want to fish for free, go after pike and check each loch individually to see if it's ok without a permit, it varies, but yeah i wouldnt suggest fly fishing for a beginner, it'd just be frustrating.