App Description

This is the official National Park Service App for St. Croix, U.S. Virgin Islands, uniquely home to three (3) National Park units: 

• Christiansted National Historic Site (CHRI) 
• Buck Island Reef National Monument (BUIS)
• Salt River Bay National Historical Park & Ecological Preserve (SARI) 

Use this app when you visit us to explore our cherished cultural and historically significant sites on St. Croix. 


3 National Parks in 1 App! – Adventure awaits you on the island of St. Croix! 

Did you know? 
- Christiansted was the capital of the Danish West Indies when sugar was king.
- Buck Island Reef has been used since A.D. 600 as a refuge by indigenous peoples. 
- Columbus landed at Salt River Bay in 1493 and named the island Santa Cruz. 

Sites – Visit points of interest with lively text, professional photographs, and engaging video clips from local students as well as experts in the fields of anthropology, archeology, botany, marine biology, meteorology and more! 

QR Code Reader – Easily learn more at each site by scanning QR Codes located on signage throughout our parks. 

Maps and Directions – Get from one place to another by following a line on the map or receive turn-by-turn directions to the location. Tap on Google’s “walking guy” to get estimated walking times and directions! (Note: Location Services must be enabled in the device settings to utilize the routing feature.)

Compass Triggering – Based on user location and movement, points of interest will trigger automatically. The “compass” icon indicates the number of nearby sites. (Note: Location Services must be enabled in the device settings to utilize the triggering feature.)

Tours and Trails – Depending on how much time you have or your special interests, follow recommended self-guided walking tours, hiking trails and underwater snorkel trails – or sign up for guided tours in our parks. 

Cultural & Ecological Resources – Learn about the plants, animals, cultural and historical research, our marine protected areas and resource management initiatives across all our parks. Join us on research expeditions highlighting coral reef, sea turtle, ground lizard, shark, and barracuda studies through video and audio content.

Events and News – Get up to date information about what is happening at Christiansted, Buck Island Reef and Salt River Bay. Check our calendar for tours, demonstrations, concerts, movies, lectures and special events going on during your visit. 

Educational Outreach & Local Partners – Learn about the organizations and institutions that collaborate with the National Park Service on St. Croix to facilitate educational programs and exhibitions which connect our visitors to our parks. Diverse opportunities are available for local residents in our Volunteers in Parks (VIP) program, as well. Become involved today!

Park Concessionaires – Easily contact and schedule a tour to Buck Island Reef with one of our six yacht and sailboat concessions. Beginning to advanced snorkel tours, beach trips, sunset tours, private charters and more are all available! All necessary gear included in tour packages. 

Postcard – Create and send a digital postcard to family and friends from each of the three National Parks on St. Croix with the tap of a button.

Download App Content – Don’t have time to take it all in during your visit? Not sure if your service provider has cellular coverage in our parks? Tap the “gears” icon to access the app settings menu and download the complete app content which will run directly off your device (no WiFi connection required).


App Type: Interpretive, Visitor Guide
Client Type: Parks & Attractions