One of Croatia’s Most Iconic Beaches Becomes the First to Launch a Sea Quality App

A New Era for Transparent Sea Protection

SeaCras is proud to announce a unique partnership with the Rewilding Velebit Foundation, introducing Croatia’s very first sea quality app in Zavratnica Bay and the neighbouring Jablanac. This innovative project brings together advanced technology and nature conservation, setting a new standard for transparent, accessible environmental data, and regenerative tourism.

Information boards with QR codes are now placed above and around Zavratnica cove.


How It Works

This summer, visitors to Zavratnica and Jablanac will notice information boards with a QR code placed near the coves, together with stickers and flyers distributed in the surrounding area. By simply scanning the code, or visiting our sea quality link here, anyone can instantly access interactive, up-to-date maps displaying sea cleanliness and possible pollution or algal blooms.

Interactive application is easy to use for all age groups and accessible on any device – from anywhere and at any time.

sea quality app QR code

Scan and take a look at one of the most recognisable and beautiful Adriatic bays in Croatia, famous for its crystal-clear water – seen from space!


What makes this system unique is the use of high-resolution satellite imagery and state-of-the-art artificial intelligence. SeaCras’ technology analyzes the latest data and updates the application timely, giving swimmers, locals, and tourists reliable, free information about the sea quality in real time.

Why This Matters

Zavratnica and Jablanac are among the Adriatic’s most famous and beautiful natural treasures. By providing open, real-time data, this project protects not only swimmers and visitors, but also encourages sustainable tourism and the preservation of sensitive marine environments.

The initiative is made possible thanks to the collaboration between SeaCras and Rewilding Velebit, with the support of the Velebit Nature Park. Rewilding Velebit is a non-profit foundation dedicated to nature conservation in the Velebit region, focusing on the restoration of natural processes and habitats, as well as increasing wildlife populations.

They promote coexistence between people and nature and aim to strengthen biodiversity in the long term – a goal that depends on public involvement, from the youngest to the most experienced members of society. Rewilding Velebit is the local partner of the Rewilding Europe initiative in Croatia.

Experience the future of sea protection – scan the QR code in Zavratnica or Jablanac, or visit this link for real-time sea quality data.


A Model for the Future

This is the first project of its kind in Croatia to make data transparent and available as a public good on a public beach, all powered by our sea quality app – serving swimmers, local communities, and nature. The service will be freely available to everyone throughout the summer of 2025.

“We are excited to show how technology and nature protection can go hand-in-hand. We hope this will inspire responsible enjoyment of the Adriatic,” says Rewilding Velebit.

SeaCras launched a similar project last year in collaboration with Zadar Cruise Port, where visitors from cruisers can check sea quality in the port.

SeaCras has also been recognised in WAVE’s report for following best practices in regenerative tourism. Building on this recognition, we’ve also been invited by the Foundation Prince Albert II de Monaco, the FII Institute, and Red Sea Global to join a curated session at the Blue Economy and Finance Forum in Monaco, held within the 2025 UN Ocean Conference (UNOC3).

Smart use of technology combined with the power of science and nature conservation creates an opportunity for Croatia to become a model of sustainable ocean management. This initiative gives the public a hands-on tool that highlights the importance of protecting nature, offers clear insight into the real-time sea quality, and sparks the growth of regenerative tourism.

Overlooking Zavratnica beach, with its narrow bay, clear turquoise water, and steep rocky cliffs