Andorra's tourism industry is a marvel of economic expansion, with a record-breaking 8 million visitors in 2025, despite its limited population of 89,486. This extreme saturation is a double-edged sword, with a strict legal moratorium on new tourist accommodation licenses and a 25% revaluation of existing vacation rental properties. The Andorran administration is taking decisive steps to manage carrying capacity bottlenecks and prevent social friction, ensuring the sustainability of this thriving sector. The Bahamas, Malta, Iceland, Croatia, Cyprus, Cabo Verde, and the Maldives are also experiencing significant tourism growth, but each faces unique challenges. The Bahamas, for instance, is dealing with the surge in cruise passengers and the need for digital border operations, while Malta grapples with high population density and infrastructure saturation. Iceland's tourism industry is heavily reliant on exports and vulnerable to volcanic risks, and Croatia's high-intensity model faces challenges in price competitiveness and seasonal peaks. Cyprus, with its high-intensity tourism framework, is susceptible to regional geopolitical vulnerabilities, and Cabo Verde is transitioning to a high-density resort economy. The Maldives, a hyper-specialized tourism destination, faces vulnerabilities in its air hub and labor market. This analysis highlights the delicate balance between rapid short-term GDP expansion and long-term economic stability in these high-density tourism economies, emphasizing the need for robust regulatory frameworks to ensure sustainable equilibrium.