A mother who was celebrating her birthday by climbing Wales' highest mountain developed heat stroke and died, an inquest has found.

Sophie Goodyer-Bird, from Birmingham, travelled to Eryri National Park in July a few days after her 35th birthday.

The hearing in Caernarfon was told the mother-of-one found the climb more challenging than she had expected, but managed to reach the summit of Yr Wyddfa - also known as Snowdon - with a friend.

However, she became increasingly tired as she descended the mountain, where she collapsed and died.

In statements given to police, one friend described Goodyer-Bird, who was a nail technician, losing her balance and walking "as though she was drunk".

Passers-by offered her water while mountain rescue teams were contacted.

The inquest was told Goodyer-Bird then became unresponsive, with mountain rescuers attempting to resuscitate her for almost an hour before she was declared dead at the scene.

A post-mortem examination later ruled out any cardio-vascular issues or disease as being responsible, and pathologist Muhammad Zain Mehdi said her death was consistent with "exertional heat stroke".

The assistant coroner for north west Wales Sarah Riley said she accepted those findings and recorded a conclusion of death by natural causes.

Goodyer-Bird's mother described her as a "devoted mother, cherished daughter and amazing sister".

She said a "light went out" when she died.

Feeling sick (nausea) or being sick (vomiting)

Excessive sweating and skin becoming pale and clammy (a change in skin colour can be harder to see on brown or black skin)

Cramps in the arms, legs and stomach

A high temperature

Being very thirsty

Feeling irritable