Episode #2.1 - S2-E1
Revealing mistake: When Martin and Katy arrive in Altea, Martin is acting like the suitcases are very heavy. The suitcases don't actually contain anything as you can see the wheels bouncing around on the floor, revealing an extremely light case.
Episode #2.1 - S2-E1
Continuity mistake: As soon as the episode starts we see a passenger jet coming in to land on the runway. In the next shot as it lands, you can see it's a different company's jet.
Episode #2.1 - S2-E1
Continuity mistake: When the Garvey family arrive by the pool, they are being shown around by a hotel worker. Look closely later, and it's a completely different person showing the family around.
Episode #2.8 - S2-E8
Continuity mistake: When Donald and Jacqueline arrive at the wedding, they walk past Mel and Mateo twice. (00:11:55)
Episode #2.8 - S2-E8
Other mistake: Geoff paraglides into the wedding accidentally hitting Mel. Mel then flies onto the sand and is knocked out. But when everyone gets out of their seat and runs up to him, there is a long trail of sand coming from Mel's feet that could only have been made if he were dragged. He didn't get dragged, he just got kicked and flew into the air, then fell on the ground. (00:18:45)