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Lisbon, Portugal

Aquatic Ecosystems & Sustainability

STEM

Dates

-

3 weeks

Costs

$5,950

Highlights

Fieldwork with pros

Immersion with a host family

Outdoor adventures

Service-learning (12 hrs)

Application Deadline

Enroll Now

Request Information

Dates

-

3 weeks

Costs

$5,950

Highlights

Fieldwork with pros

Immersion with a host family

Outdoor adventures

Service-learning (12 hrs)

Application Deadline

Enroll Now

Request Information

Overview
Curious about a career in marine biology and ready to get your feet wet? Head to beautiful Lisbon—this program’s for you!

Explore aquatic ecosystems and biodiversity in and around the capital of Portugal alongside biologists and sustainability researchers. Field work and fun trips take you birdwatching at a coastal lagoon, snorkeling in a marine park, kayaking in the longest river of the Iberian Peninsula, observing dolphins in the Atlantic Ocean, and intertidal monitoring at Avencas beach. These three, action-packed weeks are all about water, so get ready to get wet!

Immerse yourself in conservation and sustainability projects, like assessing water quality and threats to ecosystems, census-taking of plant and animal species, and conducting local interviews on human and economic impacts on marine ecosystems. Work with local NGOs to raise public awareness around coastal dune preservation and the plastics crisis that is choking the ocean.

Immerse yourself, too, in Portuguese culture. Sample local specialties, such as the famous pastéis de Belém. Paint Portuguese tiles and try Portuguese dances. Practice Portuguese phrases with local teens and market vendors. Back home, share your appreciation for Portuguese culture and apply your sustainability insights to future studies and environmental initiatives.

Why Choose This Program?

Explore

Have fun discovering the City of Seven Hills, its stunning coast, and its marine life.

Network

Meet new friends and marine biologists. Build your own community.

Get Inspired

Survey plant and animal life and inventory environmental threats to marine ecosystems. Discover how to make a difference back home.

Destination
  • Group shot
  • Scenery in Lisbon
  • Group shot

The Destination

Welcome to Portugal, one of the oldest countries in Europe and a paradise for sea lovers. 

With half of its territory bordering the Atlantic Ocean, Portugal is a prime location to study aquatic ecosystems. It is home to the largest fully protected marine reserve in Europe and is packed with wildlife-filled wetlands, sandy beaches, and dramatic riverways. 

Portugal is also full of rich history. When you are not enjoying its natural landscapes and biodiversity, you can lose yourself in incredible architecture, medieval castles, and numerous UNESCO World Heritage Sites. Lisbon, the capital of Portugal, is more ancient than Rome. Here, you’ll love riding the old cable cars up the steep hills, admiring the buildings covered in tiles of countless colors and patterns, and basking in the spectacular views of the vibrant city.  

Magical Portugal—with its sunny cities, sea breezes, beautiful beaches, friendly people, and delicious food—awaits you! 

Cultural Awareness

CIEE wants all our students to feel welcomed, supported, and empowered to succeed while studying abroad. Local CIEE staff have provided details about conditions and cultural attitudes that students with specific identities might encounter in Lisbon.

 
Itinerary

Sample Itinerary

Objective

You will characterize and discuss river, estuarine, coastal, and marine ecosystems. You will learn about biodiversity, natural resources, and climate change drivers and their impact on local aquatic ecosystems. You will learn some basic Portuguese too to help you get around and connect with the local culture

Highlights*

  • Orientation and city tour
  • First day at the beach!
  • Birdwatching in a coastal lagoon ecosystem
  • Community service with a local NGO fighting pollution
  • Traditional Portuguese folkdance workshop
  • Kayaking on the Tagus river
  • Aquarium visit in Constancia
  • Castle and convent visit in the medieval town of Tomar

*Based on prior year itinerary and subject to change.

Objective

You will explore the relations between the ocean, humans, and sustainability. You will continue to learn about the different ecosystems, with an emphasis on coastal ecosystems. You will connect with local coastal communities, engage in service work and reflect on how to work towards the 17 United Nations Sustainable Development Goals.

Highlights*

  • Dune conservation workshop and beach clean-up at Cova do Vapor
  • Tide pool exploration at Avencas beach
  • Walking tour of the historic center of Cascais
  • Tile museum visit and workshop
  • Surfing lesson at Rainha beach
  • Game night!
  • Traditional Portuguese restaurant
  • Meeting with experts and marine biologists at the Science School of the University of Lisbon

*Based on prior year itinerary and subject to change.

Objective

You will explore the marine fauna and flora in Portugal. You will observe and identify dolphins and other marine species in the wild! Then, you will focus on your final project and presentation.

Highlights*

  • The palace and gardens of Sintra, a UNESCO world heritage site
  • Snorkeling in crystal clear waters at Arrabida beach
  • Setubal local fish market visit
  • Dolphin watching boat trip with a marine biologist
  • Final presentations with feedback

*Based on prior year itinerary and subject to change.

Monday–Friday

Each day offers a balance between interactive instruction and cultural activities with time on your own, too. Morning classes and afternoon activities may swap places. 

  • Breakfast at your homestay
  • Hands-on classes with expert instructors and marine biologists
  • Lunch in the community or in the field with your fellow Global Navigators
  • Out and about for a cultural activity
  • Dinner at your homestay

Weekends

  • Overnight or day excursions to top sites 
  • Quality time with friends 

Check out the blog posts to discover more about daily life and excursions on program.   

Housing

Carefully-screened homestay

Activities

Top Rated Activities

lisbon_exploring-the-tidal-pools-at-avencas-beach.jpg

Tide Pool Investigation at Avencas Beach

Crouched on the sun-warmed rocks at Avencas Beach, you peer into a shallow tide pool and breathe in the salty ocean air. Searching, eyes keen, you spot life hidden among the rocks. With a quadrat in hand, you and your teammates carefully observe each inch, thrilled when you spot sea snails clinging to rocks or the vibrant flash of a purple sea urchin. 

In small groups, you engage in real scientific investigation. By the end, you’ll debrief your findings, identifying organisms in the supralittoral, mediolittoral, and infralittoral zones and assessing their abundance as a true marine researcher would. This hands-on work builds a sense of shared purpose with your friends and a growing responsibility to protect the environment. As you move between tide pools, each new discovery—from starfish to, if you’re lucky, a curious octopus—deepens your appreciation for these delicate habitats.

Afterward, you unwind on the beach with friends, enjoying a swim and sharing your favorite finds. You leave with new skills in observation and a renewed curiosity about the ecosystems just beneath the surface.

portugal_lisbon_kayak.jpg

River Kayaking and Fieldwork

You dip your paddle into the cool waters of the Tagus River, feeling the gentle resistance as you and your kayaking partner glide forward. The sun warms your back, and the scent of the river mixes with a light breeze as you take in the towering Almourol Castle and lush banks stretching toward Vila da Barquinha. This isn’t just a scenic paddle; it’s a chance to connect with the river’s ecosystem from up close.

With each stroke, you spot native plants, birds, and fish—real-life examples of concepts you’ve discussed in class. You record your observations, contributing to an environmental survey that supports ongoing conservation efforts. Alongside your friends and led by a local expert, you discuss how climate change and human development impact these waterways, reflecting on ways to protect such ecosystems.

As you reach the shore, you share smiles and stories, feeling energized and inspired. Today was a hands-on step toward understanding and protecting our planet’s aquatic ecosystems—an experience that will shape your future studies or career in environmental science.

Testimonials

What Students Are Saying

  • "I loved trying out new things like snorkeling and surfing, talking with the locals and making new friends."

    Meilee C., Global Navigator Alum

  • "In Portuguese culture, dinner is delivered very slowly. This is because they want you to have conversations. I loved this because I was able to talk among the other participants, who are now my very close friends."

    Sabrina C., Global Navigator Alum

  • "Seeing wild dolphins for the first time and snorkeling was the most incredible experience."

    Ahmad C., Global Navigator Alum

  • "My most memorable experiences were the hikes and conversations on the beach with my instructors. I don't think I've ever been with so many passionate and inspiring women at one time."

    Madeline C., Global Navigator Alum

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Eligibility

Eligibility

  • Participants must be 14 years old and above.
  • Program open to all current high school students: Freshmen, Sophomores, Juniors, and Seniors.  
  • For scholarship eligibility requirements, please check our  Scholarship page
  • This program involves engaging in moderate- to high-intensity physical activities, such as hiking, boating and snorkeling. Ability to swim is not required but strongly encouraged to enjoy the program and location at its fullest. 

For more information, refer to the detailed Program Essential Eligibility Criteria.

Dates & Fees

Dates & Fees

Application Fee

$25

Program scholarships and tuition include iNext Travel Insurance, but do not cover the cost of flights. Find additional details about what’s included with your tuition.

More questions? Find answers, get application support, sign up for virtual presentations or contact us.

Program

Application Due

Start Date

End Date

Costs

Program Summer Session I 2025 3 weeks Start Date End Date Costs $5,950
Program Summer Session II 2025 3 weeks Start Date End Date Costs $5,950

Ready to change your life?

What's Included

Interactive Classes

Housing

3 Meals/Day

(Dietary Needs Accommodated)

All Ground Transportation

(Once In-country)

Optional Flight Chaperone

(Flight Cost Not Included)

Pre-departure Advice and Orientation

Access to WIFI

(No international data plan or SIM card included)

All Cultural Activities and Excursions

Comprehensive Medical and Travel Protection

24/7 Emergency On-site Support

Staff

Our Staff

Joana Almeida

Center Director

Joana has been working with CIEE Lisbon since 2011. She holds a B.A. in Art History, an M.A. in Social Sciences, and a Ph.D. in Historical Sociology.

Program Leaders guide and support our High School Summer Abroad participants through every step of their program.

Get Started Steps

Get Started

Here’s what you need to do to take the next steps:

1

Start an Application

You're on step closer to an amazing study abroad experience!

2

Connect with your Teachers or Parents

Share your plans and confirm you're on track to meet all required steps to go abroad.

3

Contact Us

Send us an email if you still have questions or need information about enrolling.

Request Info