
SeaGuardian was born from a simple belief:
No family should ever have to experience the loss, fear, or unanswered questions that follow a marine accident.
Yet tragedies like the fatal crash in Portsmouth Harbour still continue to happen, even in busy and well-charted waters.
On 14 August 2025, a Rigid Hull Inflatable Boat (RHIB) with 3 people aboard collided with a navigation mark near Tipner in Portsmouth Harbour. The impact was devastating: one man died at the scene, another missing and a third man escaped with minor injuries who was discharged from hospital later.
This incident sparked a major search operation, including, family and friends, police, paramedics, Coastguard teams, lifeboats and a helicopter being deployed.
The Marine Accident Investigation Branch (MAIB) launched a full investigation, underscoring how circumstances can cascade into fatal outcomes when visibility, positioning, or crew alerts fail at the wrong moment.
Subsequent reporting highlighted critical safety themes, the importance of situational awareness, navigation accuracy and timely distress detection.
These events, and many others, became the main driving force behind SeaGuardian.
Why SeaGuardian Exists
SeaGuardian wasn’t created as just another marine app, it's aimed at improving safety and efficiency on the water!
It has been engineered to be a 24/7 digital watchkeeper, designed to catch the warning signs humans might miss:
And thats not all, SeaGuardian is ever evolving, with new and improved services brought to us through both professional mariners and recitational boaters. We are implementing things like:
Every feature reflects a lesson from incidents like the Portsmouth Harbour incident, lessons written in tragedy, but carried forward into engineering.
Turning Tragedy Into a Safer Future
When the SeaGuardian Team looked at cases like the incident that claimed William Blake’s life, we saw more than a headline.
We saw:
No technology can erase risk entirely, SeaGuardian exists to dramatically reduce it!
Our Commitment
SeaGuardian is built on the principle that every accident avoided could be a life saved.
We remain and are committed to:
The app will continue to grow, evolve, and strengthen, not just through engineering, but through real‑world experiences that will shape it further and better.
Together, we Honour Those Lost by Building Solutions That Help Protect all at Sea And Out on The Water.
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