Don't spend the holiday weekend inside! There are some great gravel events over the Memorial Day weekend. Dust off that 'cross bike you've neglected since the season ended and hit up one of these events.
You may want to check out:
SoCalCross Gravel Trofee #2 / LA Roubaix (Southern California, USA)
Badlands Gravel Battle (North Dakota, USA)
Dorset Gravel Dash (United Kingdom)
The Gravel Metric (Illinois, USA)