A man who died following an incident near Barmouth beach has been named.
Ruhul Arnin Nana died after he was found unresponsive in the water on Bank Holiday Monday (25th May).
The 34 year-old, originally from the Indian city of Navsari, worked as a science teacher at The Broadway Academy in the Perry Barr area of Birmingham.
A 24 year-old man, also from Birmingham, was questioned on suspicion of murder but later released on bail while assisting police with their enquiries.
An inquest, opened on Thursday, heard Mr Nana was pronounced dead at Barmouth lifeboat station nearly two hours after emergency services were called.
North West Wales coroner Kate Robertson told the Caernarfon hearing there was reason to believe he died of unnatural causes following a post-mortem examination.
The hearing was adjourned while a police investigation into Mr Nana's death continues.
Paying tribute, Mr Nana was described by his local MP as "an exceptional science teacher".
Ayoub Khan, independent MP for Birmingham Perry Barr, said: "Mr Nana made a lasting impact on so many young people through his dedication, kindness and passion for teaching. He will be remembered fondly by students, colleagues and the wider community."
"My thoughts and prayers are with his wife, children, family, friends and everyone at Broadway School at this incredibly difficult time."
North Wales Police are still appealing for witnesses or anyone with footage of the incident to come forward.
Detective Superintendent Chris Bell said: "I would like to thank all members of the public who assisted the man on the beach on Monday, and to everybody who has contacted us since."
"We have received an overwhelming response from the public, which is incredibly helpful to our enquiries."
"I am continuing to urge anybody with who was at Barmouth beach on Monday 25 May and witnessed the incident, and hasn’t already spoken to police, to get in touch."
"I am also re-appealing to anybody who was on the beach between 2pm and 4pm who took any photos and videos to send them to us as soon as possible."
"We are interested in all photos or videos taken on any part of the beach during the afternoon. Any image could be relevant to our investigation."
“My thoughts remain with the man's family at this difficult time.”
Anyone with information or any photos or footage of the incident should visit the major incident page on the North Wales Police website or call 101. Alternatively, you can contact Crimestoppers anonymously on 0800 555 111.
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