Greek potato salad with octopus

Ingredients

• 1/2 lb baby octopus, cleaned
• 2 yukon gold potatoes, scrubbed
• 1/2 ripe avocado
• 2 tsp freshly squeezed lemon juice
• 1 small bunch baby arugula
• 1 scallion, thinly sliced
• Sea salt
• 2 Tbsp olive oil
• 4 Tbsp fresh squezzed lemon juice
• 1 red chile, finely chopped
• 1 clove garlic, minced
• 1 ripe vine tomato, cubed
• 1 Tbsp freshly chopped parsley
• 2 tsp minced red onion
• 1 Tbsp red wine vinegar
• 2 Tbsp olive oil
• 1 Tbsp balsamic vinegar