And Wales are promised a gruelling "welcome back" when they tackle Samoa in their opening match, followed by the other Pool B clashes against Fiji and Tunisia.
"The Samoan game is the big one for us," said Wales sevens manager Dai Rees. "It will be our first game back on the sevens circuit and Samoa are ranked No 4 in this tournament.
"How we do in that match will set the tone for the rest of the day and for the next two weeks when we move on to the second round of the Series in George, South Africa.
"Then if we get something out of the Fiji game we would be happy and we are most certainly not taking Tunisia lightly - they beat South Africa last year in a major upset so that will be a tough match as well. That is the beauty of sevens.
"We have had three great days of training out here and we had a practice game against the White Hart Marauders, which was a big help in giving the boys having some real opposition.
"All 12 players will get a start during the day in one of the three matches and, although we have not yet finalised our starting line-up for Samoa, I am confident we have got the right mix of youth and experience in the squad."
Wales Sevens squad v Samoa, Fiji and Tunisia: J Merriman (Gloucester Rugby), Richie Pugh (Ospreys, captain), Gareth Baber (Newport Gwent Dragons), Jonny Vaughton (Ospreys), James Hook (Ospreys), Jonathan Edwards (Llanelli Scarlets), Rhys Oakley (Newport Gwent Dragons), Rhodri McAtee (Penzance), Aled Brew (Ospreys), Tal Selley (Llanelli Scarlets), Wayne Evans (Cardiff Blues), Chris Davies (Newport Gwent Dragons).
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