It’s hard not to feel good when you’re by the sea. The restorative power of the ocean is tangible, whether you’re taking a brisk walk along the seafront or a bracing dip in the water. On the island of Ireland, people have long harnessed the coastal elements in the quest for wellness, from swimmers in their 70s who take the plunge every morning, to those who soak in baths full of seaweed. You can follow in their footsteps along the epic coastline, from the Causeway Coastal Route to the Wild Atlantic Way, splashing in the sea, hiking up coastal mountains and sweating in beach saunas. Here’s how to plan the ultimate feelgood trip across both these iconic routes …