A Buckinghamshire man was hospitalised with internal bleeding after a horror backflip on a Thailand inflatable assault course.

Callum Ryan, 21 from Milton Keynes, says a 'dodgy landing' made his lungs hitting his ribs - which caused his lungs to bleed and left him coughing up blood.

After the jump Callum and girlfriend, Beth Colley, 19, travelled from the Grand Canyon water park, Chiang Mai, to Pye, on a three-and-a-half-hour coach journey.

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But when they arrived, Callum was feeling so unwell he went to the nearest hospital - but claims it was closed and he was told to head back in the morning.

The next day, he was given an x-ray and told he'd dislocated his ribs and damaged his lungs.

Callum then had to head back to Chiang Mai - to the Maharaj Nakorn Chiang Mai Hospital.

He was kept in Maharaj Nakorn Chiang Mai Hospital, Chiang Mai, for a few days while they assessed Callum and worked out what was wrong with him.

Callum said: "It is a hot spot for tourists and I thought it would be great fun.

"There was a big bouncy cushion at the waterpark that you jump on to and I thought: 'Let's give it a go.' "My girlfriend, Beth, went first - there was a five-metre drop to jump on the cushion - she did a backflip into the water from the cushion which propelled her into the air.

"I thought I'd do a backflip and I got the two biggest lads to jump on the cushion at the same time.

"They said they have never seen someone hit the height that I did - I landed in a dodgy way, flat on my back.

"As soon as I landed in the water, I knew I'd done something wrong.

"I swam up underwater and the second I hit the air, I had a handful of blood.

"Straight away within two or three seconds, I coughed up a handful of blood and that went on for 30 minutes."

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After their day out, Callum and Beth then headed to their next stop on their travels, Pye, Thailand.

The couple were on a four-month trip - travelling to Dubai, Vietnam, Bali and Thailand.

Callum said: "I felt really sick and ill, when I got there I wasn't feeling good.

"I went to the hospital and they said: 'Sorry, we are closed, you will have to come back in the morning.' "I went back in the morning, they gave me an x-ray and they said how I dislocated my ribs and damaged my lungs."

At the hospital, Callum received an X-ray to check if there was any internal damage and was prescribed some pain killers and sent on his way.

Callum spent two days in Maharaj Nakorn Chiang Mai Hospital Hospital, Chiang Mai, and was given some painkillers to help with the pain.

Callum's girlfriend, Beth remained in Pye while Callum was at the hospital getting treatment.

Callum's costs were covered by health insurance, totalling up to 2,855 Thai Baht (£65.66) and he has since made a full recovery.

He added: "But when I am in that environment I get silly. I am an adrenaline junky for that type of stuff."

Treatment and costs -

200 Bhat (£4.65) Seeing a Doctor

500 Bhat (£11.63) X-ray and hospital fee

1450 Bhat (£33) Main hospital fee

105 Bhat (£2.44) Medication

300 Bhat (£6.97) Another x-ray and hospital fee ENDS