It has to be spotting a wild otter near where I live. One of those days when I had to drag myself out after a busy day at work when sprawling on the sofa seemed like the best idea.
So glad I went out! Not the greatest photo but the buzz I got when the foliage parted and out strolled an otter was unbelievable.
Bear in mind when I was a kid this river was so polluted it ran all the colours of the rainbow from the stuff dumped in it and was basically dead! Now it teems with fish , kingfishers, dippers, herons and this beauty.