A motorbike holiday to Nepal has turned into a humanitarian mission for Wollongong resident Theo Sinkovits, who's now using his bike to help residents on the outskirts of Kathmandu affected by the earthquake.

What was originally a holiday to see Nepal on two wheels has become a chance to help a country desperately in need.

Wollongong resident Theo Sinkovits is now using his motorbike to travel to areas outside Kathmandu that he said appear to have been forgotten by the recovery effort.

"We rode out of the city yesterday for two hours and it's tragic there," he said.

"They don't have a lot of people hurt but 90 per cent of buildings are collapsed - you can see tin roofs sitting on top of piles of bricks.

"They don't have food supplies because all the organisations bringing stuff in don't seem to go that far."

He went out to gauge what was needed and to deliver as much meat, rice, water and medicine as he and his two friends could carry on their motorbikes.

They're now teaming up with a local group to continue taking aid to areas that are easier to reach on motorbike or have simply been forgotten.

"I'm going to try and stay in Kathmandu and do what I can to help - I'll keep poking around on the bike and chip in with food when I can around here.

"We've been very privileged and the group I've been staying with have been very lucky, but some people don't have savings to buy what they need."

Being privileged in Kathmandu still means sleeping outside under a tarpaulin in case another aftershock brings a house down on them during the night, and not having running water.

However they do have money to buy supplies, and most importantly, they have their lives.

The ground moves 'like you're on a ship'

While no one would want to experience a destructive earthquake like the one that's hit Nepal, Theo Sinkovits' description of living through it is chilling.

He said the nearest experience he could use to describe it is that it is like being on a ship in rough seas.

"The ground wobbles in a similar way and it's hard to run because everything's moving around.

"I couldn't stand still and it's very strange because you lose your balance a lot.

"I knelt down on the street and tried to stop the movement and that made it easier to stay there."

Incredibly, he said, he and his friends had only discussed what to do during an earthquake the day before it hit.

He said his initial thought was to take shelter under a kitchen table, but learned the best action was to run outside.

"It's the only earthquake I've ever experienced, so it's pretty dramatic, but the movement I sensed was incredible.

"You don't usually think the ground underneath you moves, but it does - there's been some serious movement around here."

Reports after the quake measured the impact as 7.8 magnitude, with the death toll at 5,500 and rising.

ABC is partnering with Oxfam to support the relief effort, and you can find out how to donate here.