“Jack’s Lagoon”
Welcome to Cape Jack Beach and Breen’s Pond. A local favourite location for summer time swimming and year-round walking. Cape Jack Beach is actually what is referred to as a “spit.”
A spit is a deposition bar or beach landform off coasts or lake shores. It develops in places where re-entrance occurs, such as at a cove's headlands, by the process of longshore drift caused by longshore currents. The drift occurs due to waves meeting the beach at an oblique angle, moving sediment down the beach in a zigzag pattern. This is complemented by longshore currents, which further transport sediment through the water alongside the beach. These currents are caused by the same waves that cause the drift. What is unique at this location, is that the Cape Jack beach Spit, has completely enclosed the Breen’s Pond, making this lagoon land-locked.
Lagoons are shallow, often elongated bodies of water separated from a larger body of water by a shallow or exposed shoal, coral reef, or similar feature. Some authorities include fresh water bodies in the definition of "lagoon", while others explicitly restrict "lagoon" to bodies of water with some degree of salinity. lagoons as normally being elongated parallel to the coast, while estuaries are usually drowned river valleys, elongated perpendicular to the coast. Coastal lagoons are classified as inland bodies of water.
To log this Earthcache please answer the following questions and send answers in a timely manner to my geocaching profile or email. Answers not received will result in deleted logs. Do not post your answers in your log.
Questions:
1. How long is the spit? You can use the parking coordinates as one reference point, but you’ll have to walk to the end.
2. What is the elevation of the spit from its obvious highest point?
3. How wide is the spit from the posted coordinates?
4. Where do you think the spit was ever opened to allow the sea water to flow into the bay? Why do you say this?
5. What contributed to the spit closing in?
6. Breen’s Pond is land-locked, but where does it get water from?
7. [REQUIRED] In accordance with the updated guidelines from Geocaching Headquarters published in June 2019, photos are now an acceptable logging requirement and WILL BE REQUIRED TO LOG THIS CACHE. Please provide a photo of yourself or a personal item in the picture to prove you visited the site.