Ar ddiwrnod llawn heulwen ar draeth hardd Cymru, roedd plant ysgol wedi cyrraedd ar drip maes arbennig.

On a sunny day at a beautiful beach in Cymru, schoolchildren had arrived on a special field trip.

Roedd gwynt y gwanwyn yn chwythu, a golau haul yn creu patrymau arian ar wyneb y môr.

The spring wind was blowing, and the sunlight was creating silver patterns on the surface of the sea.

Yn eu plith, cerddodd Gareth, Eira, a Rhys ar hyd yr arfordir, yn ymweld ag un o'r traethau mwyaf prydferth yn y wlad.

Among them, Gareth, Eira, and Rhys walked along the coastline, visiting one of the most beautiful beaches in the country.

Roedd Gareth, bachgen llawn chwilfrydedd ond yn introvert, yn cerdded ychydig yn ôl o’i ffrindiau.

Gareth, a curious but introverted boy, walked a little behind his friends.

Roedd Eira a Rhys eisoes yn sgrechian ac yn bownsio ar hyd y tywod, barod i gychwyn gemau gyda’u pêl fôr newydd.

Eira and Rhys were already shouting and bouncing across the sand, ready to start games with their new beach ball.

Ond roedd Gareth yn meddwl am rywbeth arall.

But Gareth was thinking about something else.

Roedd ganddo brosiect bioleg i’w gwblhau.

He had a biology project to complete.

Ei nod oedd dod o hyd i gasgliad unigryw o gregyn gleision, wedi eu cuddio o fewn smotiau cyfrinachol y traeth.

His goal was to find a unique collection of blue shells, hidden within the beach's secret spots.

Er bod y tywydd wedi dechrau’n heulog, roedd pob un ohonynt yn gwybod pa mor newidlyd allai’r arfordir fod yn ystod y gwanwyn.

Although the weather had started sunny, they all knew how changeable the coast could be during the spring.

Ystyriai Gareth ei opsiynau.

Gareth considered his options.

A ddylai ymuno â’i ffrindiau yn eu gemau?

Should he join his friends in their games?

Neu gychywyn ar ei helfa arbennig, gwybod bod glaw anymwriadol yn gallu chwalu ei ymdrechion?

Or start his special hunt, knowing that unexpected rain could ruin his efforts?

Tra roedd Eira a Rhys yn chwerthin ac yn taflu’r bêl, plygodd Gareth wrth ei liniau, chwilio drwy’r tywod euraidd am gregyn.

While Eira and Rhys were laughing and throwing the ball, Gareth knelt down, searching through the golden sand for shells.

Mewn munudau, daeth ar draws cregyn gydag amrywiaeth o siapiau a lliwiau, yn cynnig lliwiau mewnosodiedig o las tywyll a pinc ysgafn.

Within minutes, he came across shells with a variety of shapes and colors, offering embedded hues of dark blue and light pink.

Wrth i oriau fynd heibio, daeth Gareth ar draws cregen arbennig.

As the hours passed, Gareth found a special shell.

Roedd hi’n fawr yn ei law, yn sgleinio yn yr haul fel yr un mwyaf prydferth a welai erioed.

It was large in his hand, gleaming in the sun as the most beautiful one he had ever seen.

Yn sydyn, roedd glaw yn dechrau disgyn—gollwng cymylau du dros yr arfordir.

Suddenly, the rain began to fall—casting dark clouds over the coast.

Daeth storm gyflym â glaw trwm a gwyntoedd cryfach.

A swift storm brought heavy rain and stronger winds.

"Mae’n rhaid i ni fynd!

"We have to go!"

" gwaeddodd Rhys wrth Eira, yn rhedeg i gyfeiriad y lloches.

shouted Rhys to Eira, running towards the shelter.

Ond aed Gareth yn ôl.

But Gareth stayed back.

Cymerodd foment i wneud ei benderfyniad.

He took a moment to make his decision.

Penderfynodd amddiffyn ei gasgliad, hyd yn oed os oedd yn golygu gwlychu.

He decided to protect his collection, even if it meant getting wet.

Fe wnaeth blygu dros ei gregyn gwerthfawr, eu cadw’n ddiogel.

He bent over his valuable shells, keeping them safe.

Cyrhaeddodd ei ffrindiau yn ôl ato, a gweld ei gasgliad, roeddent wedi rhyfeddu.

His friends returned to him, seeing his collection, they were amazed.

"Mae hyn yn rhyfeddol, Gareth," dywedodd Eira, ei llygaid yn fawr ac yn llawn canmoliaeth.

"This is amazing, Gareth," said Eira, her eyes wide and full of admiration.

"Fe awn ni i helpu i gasglu mwy.

"We'll help gather more."

"Gyda’i gilydd, pan fu’r storm wedi pasio, gwnaeth Rhys ac Eira helpu Gareth i gasglu mwy o gregyn, gan sicrhau bod ei brosiect yn arbennig.

Together, when the storm had passed, Rhys and Eira helped Gareth collect more shells, ensuring his project was special.

Teimlai Gareth yn fwy hyderus yn ei angerdd newydd, a chafodd ei werthfawrogi gan ei ffrindiau, sydd wedi deall ei ddiddordeb.

Gareth felt more confident in his new passion and was appreciated by his friends, who now understood his interest.

Erbyn diwedd y diwrnod, roedd Gareth wedi cyflwyno casgliad sydd nid yn unig yn unigryw ond hefyd yn dyst i’r ffrindiaeth o fewn ei grŵp.

By the end of the day, Gareth had presented a collection that was not only unique but also a testament to the friendship within his group.

Wrth iddyn nhw adael y traeth, gwelodd Gareth nad oedd yn cael ei anwybyddu wedi’r cyfan.

As they left the beach, Gareth realized he was not overlooked after all.

Hoeliai’i lygaid ar y gorwel, cartref yn ei ddarn o fryd hadyddiad ar gefn yr haul.

He fixed his eyes on the horizon, home in his piece of sculpted thought against the backdrop of the sun.

Roedd y draeth, y storm a’r cyfeillgarwch wedi newid popeth.

The beach, the storm, and the friendship had changed everything.

Ac felly, gwelodd fod ei ffrindiau'n gefnogol ac yn deall ystyr y dewrder a’r brwdfrydedd a oedd ganddo i’w rannu gyda'r byd.

And so, he saw that his friends were supportive and understood the meaning of the courage and enthusiasm he had to share with the world.