Overtourism and Destination Protection: Less Is More

Iceland has become a textbook case of overtourism. The country welcomes visitors; the problem is that its carrying capacity was silently exceeded. In 2010, the island saw 490,000 visitors annually; by 2019, that figure reached 2.3 million. Roads eroded, mosses on the highlands showed trampling damage, geothermal plants were expanded to supply hot water to new hotels. The paradox is instructive: precisely because Iceland appears pristine, it becomes overwhelmed. Other nations have already implemented visitor caps — Bhutan, the Galápagos, parts of Thailand. Iceland still attempts gentler tourism without structural limits. That won’t hold.

The Measure: What Is Carrying Capacity?

The figures are unambiguous. According to Germany’s Federal Environmental Agency (Umweltbundesamt), two-thirds of German travelers (67 percent) say they want to travel more sustainably — yet only five percent actually do. Flights have become cheaper, more flexible, and more frequent. The result: while sustainability certifications have doubled, passenger numbers on flights to leisure destinations continue to rise steadily.

The failure here is structural. The industry has optimized for growth and treated long-term viability as an afterthought.

Venice is the extreme example. In 2019, 50,000 day-trippers flooded into a city of barely 250,000 residents daily. Saint Mark’s Square was no longer a place—it was a crush. Starting in April 2026, Venice has imposed an entry fee: five euros per person, rising to ten euros for those who book fewer than four days in advance. The point of the fee is capacity management; the revenue is secondary. The fee will expand during peak season, with maximum charges of up to 50 euros on peak days under discussion.

Barcelona has taken it further. From 2026 onward, cruise ship terminals are being consolidated from seven to five. This lowers daily maximum capacity from roughly 37,000 to 31,000 passengers — a 16 percent reduction. Additionally, the city has doubled the tourism tax on cruise passengers, from 4 to 8 euros. Barcelona is steering its policy toward travelers who stay longer and away from day-trippers.

These measures protect the very thing that made destinations attractive in the first place: authentic places, real people, genuine atmosphere. Reading them as anti-tourism misses the point.

Why Doesn’t Redirecting Work?

“Visit Valencia instead of Barcelona” — this advice appears in every travel blog. The problem: if Barcelona is overwhelmed because it feels authentic, Valencia will be in five years. Then blogs recommend Tarragona. Then Castellón. Eventually, all Spanish coastal cities become tourist processing centers.

UNESCO warns of this pattern: redirecting tourists is not the same as regulating tourism. If total volume doesn’t decrease but merely shifts, alternatives simply become overwhelmed later. Malta, the Canary Islands, Portugal — all nations now exceeding their infrastructural and ecological capacity because they were marketed as “alternatives to Greece.”

Researchers call this “leapfrogging”: tourists intentionally skip the overcrowded sites to reach the newer ones faster. The reality is that there simply aren’t enough “alternative” destinations for the volume of travelers. The only real alternative is to travel less — or stay longer in one place.

What Works: Regenerative Tourism

Countries that seriously enforce their limits show results. Bhutan pioneered this approach. The nation charges a “Sustainable Development Fee” (SDF) for all international visitors: between $100 and $250 per day (approx. 92–230 euros), depending on season. This includes accommodation, meals, and a local guide.

Economic necessity, more than altruism, drives this environmental model. The high SDF means only about 70,000 international visitors annually are admitted — in a country of 750,000 residents, that’s roughly a one-to-ten ratio. Revenues directly fund conservation programs, education, and local infrastructure. Seventy percent of forests remain intact because they’re not converted to infrastructure. The per-visitor footprint is higher, but total strain is controlled.

This also works in Europe. Slovenia has long enforced visitor caps in its national parks, especially at Lake Bled, where rowboat rides are limited to 180 per day. Waiting times are longer, but ecosystem disruption — bank erosion, nutrient runoff, noise pollution — is manageable.

The regenerative component is decisive: it adds active restoration on top of restraint. Revenue sharing with local communities, funding for biodiversity projects, investments in traditional crafts — this goes beyond “sustainable tourism” in the familiar sense, which often means greenwashing. It amounts to deliberate capacity management with community benefit.

The Uncomfortable Truth About Slow Travel

Slow travel is currently the go-to advice. Spend two weeks in one city instead of ten cities in two weeks. This reduces transport emissions per day, but increases total accommodation and food consumption.

A month-long rental in Lisbon may mean fewer flights, but 30 nights in an Airbnb also contributes to resident displacement and housing scarcity. That form of travel creates pressure of its own; the sustainability gain is largely illusory.

Even slow travel needs limits. If it means 10,000 digital nomads relocate to Lisbon and local rents double, it’s structurally as problematic as mass tourism — just spread over time.

The truth is uncomfortable: genuine sustainability means traveling less — no amount of traveling differently changes that math. Slow travel has its limits when volumes keep rising.

What Could Work

Several nations are experimenting with differentiated approaches. Croatia, also facing overtourism pressure, raises tourism taxes on specific destinations during peak season and channels the revenues into public infrastructure that residents actually use. Portugal and Spain are also attempting better management methods. Morocco regulates trekking groups in the High Atlas to a maximum of twelve people per guide, minimizing erosion and cultural shock.

Germany offers lessons too. The Harz region, one of Germany’s most visited, has introduced parking limits and free public transport for guests — tourists pay a small fee and receive unlimited train access, redirecting them from cars to trains. It’s not revolutionary, but it works.

What these models share: they rely on structural incentives rather than voluntary behavior. Parking fills up, roads close, entry fees kick in on peak days. A website urging people to travel sustainably would achieve none of that. That actually changes behavior.

The Industry’s Role

German travel operators will soon have fewer excuses. In early 2026, the EU announced a new tourism sustainability directive — operators, airlines, and hotels must transparently report CO2 balances and either reduce emissions or finance offsetting projects. The directive is imperfect — greenwashing remains possible — yet it enforces accountability.

Long-term, the industry can’t avoid structural caps. The question is only whether it shapes policy proactively or whether destinations resort to political measures that become too restrictive.

The Case for Visitor Caps

Tourism researchers agree that redirecting tourists solves nothing on its own. The real conversation is about visitor caps. This sounds radical, yet it’s hardly new in scientific terms — researchers have warned of the problem for at least 15 years. Countries taking it seriously are acting now. The others will do so under duress later.

Volume is the real issue — the industry needs to shift from growth thinking to capacity thinking.