Lynch, Pittsburgh Steelers running back DeAngelo Williams, Miami Dolphins tight end Jordan Cameron, and several other NFL players enjoyed a trip to Egypt, sponsored by American Football Without Barriers (AFWB).
On Monday, the group rode camels around the pyramids.
"We ghost riding the camel right now, you feel me?" Lynch said in a video posted by the Seahawks.
The AFWB describes its purpose on its website as: "AFWB is a 501c3 nonprofit organization with a mission to provide at-risk, underprivileged and disadvantaged youth with opportunities that promote physical fitness activities, overall wellness, and educational advancement."
"AFWB provides sports performance training camps in the U.S. and internationally, as well as health and fitness workshops, mentorship, scholarship programs, and education programs for boys and girls," AFWB.com says.
Lynch, 29, retired this year after rushing for 9,112 yards and 74 touchdowns in 127 career games.