The James River runs through the city, and there are lots of beautiful areas to walk or have a picnic on the rocks! Check out Pony Pasture for easy access and parking, or some of the other accessible areas along Riverside Drive near the Huguenot Bridge that share a trail system.
Maymont is a 1000-acre green space with a walk-able wildlife park, nature center, gardens, and trails. There are some indoor spaces to enjoy too, if the weather is not on your side.
Carytown is a great little district full of fun indie stores, vintage boutiques, restaurants and cafes, and an historic theater. Great way to spend a little time poking around and getting something good to eat.
If you're looking for somewhere neat to hang out on the west side of the city, Hardwood Craft Brewery at West Creek is a great spot surrounded by a Wildlife Preserve, with a tap room, weekly food trucks, and disc golf course.
https://vmfa.museum/exhibitions/at-the-museum/ If you're looking for an indoor activity, the VMFA is a great museum to visit and always has different exhibits rotating through.