Don't let summer crowds deter you from continuing 12km uphill past Covadonga to these two beautiful little lakes, set against jaunty (often snow-topped) peaks. Most day trippers don't get past patting a few cows' noses and snapping photos near the lakes, so walking here is as delightful as anywhere else in the Picos.
Lago de Enol is the first lake you'll reach, with the main car park and an info point just beyond it (downhill). It's linked to Lago de la Ercina, 1km away, not only by the paved road but also by a footpath (part of the PRPNPE2) via the Centro de Visitantes Pedro Pidal, which has displays on Picos flora and fauna.
En route, about 8km uphill from Covadonga, the Mirador de la Reina is worth a stop for its dramatic panoramas across hills to the Bay of Biscay.