22/06/2017 Newsround

Hi, I'm Ricky and this is Newsround.

Keep watching for all of this.

With summer holidays on the horizon, we ask where you guys like to go.

And way to glow!

Find out what causes this amazing sight.

First this morning, Liam Payne, Rita Ora, Stormzy and Leona Lewis -

# Like a bridge over troubled water...#

Just a few of the names who are helping to raise

money for those affected by the Grenfell Tower fire

which happened last week.

The singers recorded Bridge Over Troubled Water

to support victims' families.

The song hit the number one spot on iTunes just two hours

after it was released.

The X Factor judge Simon Cowell organised the track.

I was thinking at the time, raise some money, I also

thought raise awareness, and I also thought

raise some support.

I wanted it to be something that, you know, weeks, months later,

when you hear the record, you still remember what happened.

Next, to something that looks like it's from out of this world -

algae that glows in the dark.

That's all I'm saying.

Take a look.

It's a rare sight, the ocean glowing in the dark.

Yeah, a couple of salmon out the back jumping out.

It was like fireworks sort of thing, the water.

It was pretty cool.

What you're looking at is Noctiluca scintillansmore, also

known as sea sparkler.

When you pick it up, it dribbles through your fingers.

Whenever it lands on something, it glows.

Just little splatters of bright glue, I suppose.

The glow is caused by a natural chemical reaction with algae.

When a boat drives through it or you put your hand through it,

the chemical reaction is initiated, as a result of which,

you get this emission of light.

Algae are tiny living things that are found in water all the world.

When the algae is touched, it changes colour from a dull pink

to a bright electric blue.

They are not observed as often in the colder waters off Australia

but more in the sub tropical and warm temperate waters.

This display was caught on camera at a beach in South Australia.

The glow is completely harmless, but what a sight!

Well, it's been pretty hot lately in the UK,

with yesterday the hottest June day since 1976.

Keeping cool can be quite tricky, especially for pets.

Here's some advice on how to help your dog beat the heat.

Hello, UK.

It's Caesar Milan here.

This is my friend, Eddie.

We're in Singapore.

We heard you guys have a heat wave right now in the UK,

which is unusual, but we are going to give you some

suggestions of what to do.

Number one, make sure, when you go for a walk,

it's early morning or late afternoon - that would be ideal for the dog.

Dogs normally don't walk in the heat.

Number two, bring water with you.

Make sure you do short and sweet walks and always find a place

where you can cool down.

Number three, after you finish the walk, make sure you put nice,

cool, compressed towels on his chest.

Right?

All right, UK.

Have fun.

It's getting nearer to the summer holidays.

But when it comes to destination, do you prefer to visit somewhere

you already know or go to somewhere new?

Whitney has been investigating.

So, everyone loves a new adventure once in a while, right?

And with the summer holidays soon approaching, I think you're dreaming

of that new and exciting destination you could possibly visit to create

some amazing and wonderful memories.

I know I am.

But did you know that one guy believes it's less

about where you go and more about where you go back to.

Hi, there.

I'm Oliver James.

I'm a psychologist.

I think, as a child, what you really want

when you are small is predictability in your holiday destinations.

Your parents may want to drag you around churches and art

galleries, but is that what you really want?

I don't think so.

What you want is the same beach, the same hills, the same rivers,

the same lakes, lots of nature.

When you are ten, you really couldn't care less whether you are

in France or England.

Thanks, Dr James, but how many of you agree with his theory?

I don't really agree with Dr James's statement.

I've been to a few places on holiday.

I've been to Wales, Cyprus.

I've been quite a lot around Europe.

I think it's best if you travel when you are younger

and when you are older.

I like going to the same place every year.

I think it is nice to go somewhere new after a bit,

but it's just relaxing to go to the same place,

do the same thing.

So, I've been going to Italy for the past two years,

but before that, I've been going to Cyprus for nine years.

My parents and my grandparents own a little caravan

in North Wales and I've been going there since I was

about three months old.

I personally like going different places because it's good to get

new experiences and enjoy going somewhere new.

Well, whatever the case may be, as long as the sun's out, I'm happy.

And we want to hear what you've got to say on this one - go online now.

That's all from me.

Leah's back with more from Newsround at 4.20pm this afternoon.

Welcome, one and all. It's Thursday and we're having a ball.

Eh? Someone's a poet and they know it.

Do not underestimate my rhyming skills, Rhys.

Eh, have a bit of this one.

Coming up next is Little Roy.

Don't you know he's a cartoon boy?

Oooh!