The 1874 First Order Fresnel Lens at the top of the St. Augustine Lighthouse! 📸💡From former Lighthouse Keeper Rick Cain: “Late evening lighthouse duty, the light is not on yet. This is when the sun is low in the west and refracting through our 1st Order Fresnel Lens.” 📍Hours are 9 AM-6 PM seven days a week. staugustinelighthouse.org #staugustinelighthouse #lens #light #lighthouse #fresnellens #museum #staugustine #florida #beautiful #historicpreservation #summer