Bedwas' Joe Mills goes on the attack against Cardiff.
Missed tackles, indiscipline, and a mis-functioning line-out all conspired to make this an afternoon to forget for Bedwas as Cardiff bossed proceedings from start to finish to record a comfortable 46-23 victory.
The afternoon did not start well for Bedwas as Cardiff's left wing Mike Stephens crossed wide on the left with only a minute played. Dean Gunter missing with his conversion attempt.
Bedwas rallied and with Cardiff down to 14 men following prop forward Tom Davies's sin binning, Joe Mills was driven over for an unconverted try.
Cardiff turned the screw and Dean Gunter penalty goals on 12, 15 and 21 minutes, centre Shaun Powell's try and a Gunter conversion put them in charge with Bedwas's ace goal kicker Powell only able to convert one of his own penalty opportunities to compound the misery.
Gunter added a fourth penalty just before the half hour mark before Bedwas scored their best try of the day through Rory Budina, again unconverted. Right wing Steve Cullen crossed five minutes before the interval but again the conversion was missed to leave Bedwas trailing 24-18 at the break.
It didn't take long before Cardiff extended their lead, Shaun Powell breaking through some weak tackles for a try, Gunter adding the conversion and a further penalty goal, with Bedwas's James Thomas sin binned for a ruck offence. Tom Slater's try after 61 minutes earned his side a bonus point after more poor defence from Bedwas and the game was won.
Bedwas tried to mount a comeback but James Sawyer was denied a try after being adjudged to have knocked on whilst touching down and the game began to peter out.
James Loxton added Cardiff's fifth try of the afternoon with two minutes left to play, Gunter converted and Bedwas were down and out but had the last word with virtually the last move of the game Cullen crossed out wide to earn his side a bonus point for four tries.
So the season ends with Bedwas finishing in sixth place, having a record of played 22 games, won 11, lost 11.
Wales and Ospreys back row James King, who came through the North Wales age grade system, nominated North Wales Regional Community Rugby Manager Marc Roberts, in the WRU's 'Diolch' initiative where squad players thanked those who played a part in their rise to the top.
Beating Merthyr has boosted Carmarthen Quins hopes of reaching a top eight spot in the Principality Premiership. Quins captain Haydn Pugh is delighted with his team's progress and is determined that everyone from the Under 6s through to the senior team, enjoys the ride.
When the Wales squad were asked to nominate individuals who played a big part in their early playing days, Wales and Dragons full back and wing Hallam Amos thought of his former Monmouth School rugby coach John Bevan.
Sam Cross and Luke Treharne have been named as co-captains of the Wales Sevens side as head coach Gareth Williams names his 12-man squad to play in the first leg of the HSBC World Series in Dubai next weekend.
Bedwas head coach Steve Law and players Nicky Griffiths and Alun Rees extol the virtues of the close knit club as they prepare to host third place RGC 1404 - who are one place head of them on the Principality Premiership points table - on Saturday.
Many of the Wales squad have said Diolch (thank you) to someone who played an important part in their early playing days by nominating them to be invited to the Wales v South Africa match. One person, Gowerton Comprehensive geography teacher Mr Dean Mason was nominated by two of his former pupils, Dan Biggar and Sam Davies.
The second WRU disability rugby pilot has been delivered, this time in Caerphilly schools, culminating in a festival at the Caerphilly Centre of Sporting Excellence, Ystrad Mynach tomorrow. Plans are in place to set up a Disability Rugby Club in Newbridge to provide long-term playing opportunities.
WRU TV: Hear from inside the Wales camp as Neil Jenkins discusses this weekend's clash with South Africa and how the squad are looking to put in a strong performance to round of the 2016 Under Armour Series