Because so much can be said with images instead of words, I'll leave you with this quote and then let you see the pictures I took on that beautiful day in Saimaa:
"In the day's last light the glowing lake below the palace-city looked like a sea of molten gold. A traveler coming this way at sunset - this traveler, coming this way, now, along the lakeshore road - might believe himself to be approaching the throne of a monarch so fabulously wealthy that he could allow a portion of his treasure to be poured into a giant hollow in the earth to dazzle and awe his guests. And as big as the lake of gold was, it must be only a drop drawn from the sea of the larger fortune - the traveler's imagination could not begin to grasp the size of that mother-ocean!...But then the sun fell below the horizon, the gold sank beneath the water's surface, and was lost. Mermaids and serpents would guard it until the return of daylight. Until then, the water itself would be the only treasure on offer, a gift the thirsty traveler gratefully accepted."