Roedd y gwynt yn chwythu’n ysgafn drwy'r coed wrth i Aneira a Cai gerdded yn Snowdonia.

The wind was blowing gently through the trees as Aneira and Cai walked in Snowdonia.

Roedd y planhigion yn lliw prydferth, oren a melyn, yn omli ar ben y tir wrth iddyn nhw symud ymlaen.

The plants were beautifully colored, orange and yellow, painting the landscape as they moved forward.

Roedd hi'n ddiwedd mis Hydref, a gallai'r ddau glywed y sŵn dail crensian o dan eu traed.

It was late October, and they could both hear the sound of leaves crunching under their feet.

"Heddiw yw'r diwrnod," meddai Aneira gyda disgleirio o gyffro yn ei llygaid.

"Today is the day," said Aneira with a sparkle of excitement in her eyes.

"Mae'n rhaid bod y bwncer yn rhywle yma.

"The bunker must be around here somewhere."

"Cai edrychodd o gwmpas yn brin o ffydd.

Cai looked around, lacking faith.

"Yn sicr, Aneira?

"Are you sure, Aneira?

Mae'r nos yn nesáu, ac mae’n Hawelog.

Night is approaching, and it’s getting dark."

"Mae'r ddau wedi clywed am hen chwedlau am fwncsyr cudd yn y parc achos tân lleol, ond heb neb erioed wedi ei weld.

They had both heard old tales of a hidden bunker in the local fire park, but no one had ever seen it.

Roedd Aneira wedi bod yn breuddwydio am yr antur hon ers misoedd, ond nawr roedd y gwynt oer o'r nos arnynt.

Aneira had been dreaming of this adventure for months, but now the cold wind of the night was upon them.

"Bydd e'n hwyl!

"It’ll be fun!

Ac mae straeon am y lle yn dweud ei fod yn llawn cyfrinachau a thrysorau," taranodd Aneira fel eu bod eisoes yn agored i'r byd cudd.

And the stories about the place say it's full of secrets and treasures," Aneira exclaimed as if they were already embracing the hidden world.

Aeth y ddau ymlaen ar hyd y llwybrau dan gysgodion ac oddi ar y ffordd, wrth chwilio am gliw, gwelodd Aneira gopaethyn cysgodol.

The two continued along the shadowy paths and off the beaten track.

Roedd fel dryswch coed o amgylch, yn canu'n araf fel petai'r coed yn adrodd chwedlau o hen amser.

While searching for clues, Aneira spotted a sheltered mound.

Goleuodd y wawr gyda chysgodion estynig, gan beri i Cai frwsio nerfedig ei fraich yn erbyn rhan o'r ddaear.

It was like a tangle of trees around them, singing softly as if the trees were recounting legends of old times.

"Rydyn ni mor bell o'r map.

The dawn lit up with stretching shadows, causing Cai to nervously brush his arm against part of the ground.

""Ond edrycha, dyma e," galwodd Aneira'n fuddugoliaethus, yn codi cerrig i ddatgelu clo dryslyd.

"We are so far off the map..." "But look, here it is," Aneira called out triumphantly, lifting stones to reveal a puzzling lock.

Cafwyd chwithian o dwll tywyll.

A creak came from a dark hole.

Chwiliodd y ddau am funud mewn distawrwydd, cyn clywed sŵn lleisiau istwfft, fel petai einioes wedi byw'n hir yn y lleoedd anghysbell.

They searched quietly for a moment, before hearing the muffled sound of voices, as if having endured a long existence in these remote places.

"Dylem ni fynd yn ôl?

"Should we go back?"

" Cai anfwriadol ysgrifennodd.

Cai inadvertently wrote.

"Mae'n bryd inni wynebu ein hofnau," atgoffodd Aneira ei hun ac, wedi hynny, Cai.

"It's time to face our fears," Aneira reminded herself and, subsequently, Cai.

Roedd hi’n bryd i fynd i mewn a gweld beth sydd yno, gyda chalon gyflym.

It was time to go in and see what's there, with a fast-beating heart.

Roedd y ddau yn barod i gamu i’r anhysbys gyda’i gilydd.

Both were ready to step into the unknown together.

Gwasgodd y clo ac aeth y drysau i mewn, gan ddatgelu hen gyfarpar a llongau gwag, ond yn bwysicach, maen nhw'n sylweddoli bod antur o ddysgu eu hunain a'u cydymdeimlad yn werth y drafferth.

She pressed the lock, and the doors opened, revealing old equipment and empty vessels, but more importantly, they realized that the adventure of discovering themselves and their empathy was worth the effort.

Daeth y dydd i ben wrth iddynt rannu eu chwilfrydedd ac yntau ei wariaith yn uno ar yr ymdrech hon.

The day ended as they shared their curiosity, and their language fused in this endeavor.

Roedd hyn yn welliant oll.

This was an improvement overall.

Roedd Cai yn gwerthfawrogi gallu Aneira i wneud hynny, ac Aneira yn enillydd busnes Cai, wedi dod o hyd i hyder newydd drwy antur.

Cai appreciated Aneira's ability to do so, and Aneira as the winner of Cai's business, found new confidence through the adventure.