Adam Van Grack returns from kayaking in the Potomac River at the Chesapeake & Ohio Canal National Historical Park in Potomac, Md., a suburb of Washington, on January 22, 2018. National parks remained partially open during a government shutdown. This decision by the Trump administration was likely an attempt to avoid the outrage created by the complete closure of national parks during the 2013 shutdown. (Photo: AMANDA MOSHER) Elements of Photography: Sense of Place, Layering, Centering, Movement, Scale, FramingAdam Van Grack fastens his kayak to his car after a trip on the Potomac River at the Chesapeake & Ohio Canal National Historical Park in Potomac, Md., a suburb of Washington, on January 22, 2018. (Photo: AMANDA MOSHER) Elements of Photography: Reflection, Linear Perspective, Scale, LightAndy Stuart prepares his kayaking gear at the Chesapeake & Ohio Canal National Historical Park in Potomac, Md., a suburb of Washington, on January 22, 2018. (Photo: AMANDA MOSHER) Elements of Photography: Color, Rule of Thirds, Sense of Place, LayeringA kayaker prepares for a trip on the Potomac River at the Chesapeake & Ohio Canal National Historical Park in Potomac, Md., a suburb of Washington, on Monday, January 22, 2018 during a government shutdown. (Photo: AMANDA MOSHER) Elements of Photography: Hail Mary, Rule of Thirds, ColorKayakers in the Washington, D.C. area head to the Potomac River to take advantage of the unseasonably warm weather on Monday, January 22, 2018 during a government shutdown. (Photo: AMANDA MOSHER) Elements of Photography: Selective Focus, Texture, ColorKayakers head to the Potomac River at the Chesapeake & Ohio Canal National Historical Park on Monday, January 22, 2018 during a government shutdown. D.C. area residents were treated to unseasonably warm weather with the temperature climbing into the 60s. (Photo: AMANDA MOSHER) Elements of Photography: Color, Negative Space, Scale, Leading Lines, Centering, Linear PerspectiveKayakers launch into the Potomac River at the Chesapeake & Ohio Canal National Historical Park on Monday, January 22, 2018 during a government shutdown. (Photo: AMANDA MOSHER) Elements of Photography: Repetition, Texture, Movement, Color, Linear PerspectiveA kayaker paddles through the Potomac River at the Chesapeake & Ohio Canal National Historical Park on Monday, January 22, 2018 during a government shutdown. (Photo: AMANDA MOSHER) Elements of Photography: Texture, Negative Space, Rule of Thirds, LightA kayaker finishes his trip in the Potomac River at the Chesapeake & Ohio Canal National Historical Park on Monday, January 22, 2018 during a government shutdown. (Photo: AMANDA MOSHER) Elements of Photography: Movement, Texture, Color, Rule of Thirds, Linear PerspectiveVisitors enjoy the unseasonably warm weather at the Chesapeake & Ohio Canal National Historical Park in Potomac, Md., a suburb of Washington, on Monday, January 22, 2018 during a government shutdown. (Photo: AMANDA MOSHER) Elements of Photography: Color, Movement, Layering, ScaleA great blue heron poses for visitors at the Chesapeake & Ohio Canal National Historical Park in Potomac, Md., a suburb of Washington, on Monday, January 22, 2018 during a government shutdown. (Photo: AMANDA MOSHER) Elements of Photography: Reflection, Texture