Clickety click when pedalling

Thanks for all the suggestions!

Will grease up the saddle bolts and seatpost tonight. If I still have noises I'll check out the wheel bearings too. I had suspected something up with the rear hub, I went down a sandy cycle track in the wet a few months back and am sure that was not a wise move. I did attempt to get in there once, but could not figure out how. It seemed a sealed unit. It's a "Formula TH 51" that came with the bike.

The BB bolts are insanely tight - I was standing on my BB tool! I was trying to fix a previous creaking sound that I was convinced was the new BB not aligning with the cranks, anyway that turned out to be the old chain. Fixed the grinding from the old BB though. Strange how noises seem to not come from the source, they must be amplified through the frame to some other place.

When I had my click, I could of sworn I could feel the click through the pedals. Replaced those before checking everything else, PITFA.