内容摘要：The "systemic issues" that emerge as common themes from the coroners' reports include:

The "systemic issues" that emerge as common themes from the coroners' reports include:

In January, they slept in the snow in their back garden, in the summer they would sleep in the forest or on beaches.They took on their first thru-hiking challenge when Finn was 10, spending four days walking the

before they had to head home when the wind snapped the poles of their tent.Then last year when Finn was 12, they really upped the ante, completing the UK's longest national trail, the 630-mile (1,013km)"Now that was challenging," recalled Finn.

"I didn't realise what I was signing up for," he joked.But despite the extreme distance, he said he and his mum got on "quite well".

"There were a few challenging moments," said Kerry-Anne.

"Finn can make up a story that's five hours long and lasts the entire day."A Wessex Water spokesperson said: “Naturally occurring groundwater can enter sewers, often from private pipes and in dry weather, which can cause overflows to operate for days or even months.

“We agree overflows are outdated so we’re investing £3 million a month to help reduce how often they automatically operate.”A spokesperson for Southern Water said: “In areas with high levels of residual groundwater, spills can happen outside of periods of rainfall. Without these releases – made up almost entirely of groundwater – homes and communities would be flooded.

“Combatting these groundwater spills is a key part of our £1.5 billion Clean Rivers and Seas Plan, which is designed to drastically reduce all storm overflows across our region by 2030.”Water and sewerage companies are responsible for outlets known as combined sewer overflows (CSOs), which release sewage from treatment works or the sewage network into the UK's waterways.