I knew about Google Maps that when you get directions you have the option for travelling by bike, but I was surprised to see that the bike trails/paths also show up in the regular map - you just have to select the corresponding layer (see screenshot). This is extremely useful for discovering nearby, lesser known bike paths.
We've also added information about bike trails, lanes and recommended roads directly onto the map. This can help you get a better sense of your route, or let you find trails nearby for a recreational ride. When you're zoomed into a city, click on the "More" button at the top of the map to turn on the "Bicycling” layer. You'll see three types of lines appear on the map:
• Dark green indicates a dedicated bike-only trail;
• Light green indicates a dedicated bike lane along a road;
• Dashed green indicates roads that are designated as preferred for bicycling, but without dedicated lanes
More info here.