Gorky park foot trip. The best place to start is my A point if you travel by car - there is a parking. Better choose summer season for travel, because you can choose bikes or scooters for rent, great street food and activities like yoga, dances, cross-fit - anything you like. Around park at the A point you can find squirrels and purchase nuts to feed em.
Small but impressive park in the center of Russian capital. Must visit local restaurant with mixed cuisines