We visited Loro Parque for the first time during our holiday last month and really enjoyed it. It took us a little over an hour to get there by car from PDLA but it's an easy drive. An advantage of having a hire car was that after arriving at 11 am, we were able to stay right up to when the park shut at 6.45 pm, long after the main bulk of visitors had departed to be bussed back to their resorts and the best time to enjoy an unhindered stroll round the park when the animals are most active.
Planet Penguin was good - you just stand on the slow-moving conveyor belt which takes you round their replicated Antarctica habitat where they even reproduce falling snow. All the shows are excellent. Even the ubiquitous parrot show was better than most with lots of free-flying around the auditorium in between the usual parrot tricks we've all seen before. The Orca show was impressive though the trainers did not go in the water with them at all. It's obvious which seats will get soaked by the whales during the show so no excuses if you end up drenched. While waiting for the show to begin, they train a couple of cameras on various people in the audience so you could find yourself shown on the big electronic screen with a comical speech balloon caption added next to you. It's good fun though.
Entry was €32 (ages 12 & above) and €21 (children aged 6-11) at the gate and they also charge a couple of euros for parking the car but once inside the park they had the offer of a second visit for just €10 each if you return within a fortnight, a good deal if you fancied another visit during your holiday. My advice is go. You're bound to enjoy it.