IWA International Symposium on Water & Wastewater

Event completed!
Event completed!

Why Oasis?

  • More than 30 years of expertise
  • Reliable companion
  • Secure Payment

Any question?

Please contact us, we will be happy to assist you

+90 212 292 47 14

3 Days
Postponed to 2021. New dates will be announced soon.











Early registration1

Late registration2

Onsite registration


Non-IWA member







IWA member








YWP (student)

70.00 €

50.00 €


75.00 €




Accompanying delegate

50.00 €

40.00 €

70.00 €

60.00 €




*IWA Country Classification




Suggested Hotel



Single Double

Suggested Tours Price/person
Barcelo Istanbul Hotel 5*  90 € 100 € 27 April Ottoman Secrets 85 €
Elite World Prestige 4* 70 € 80 € 27 April Bosphorus Cruise and Sadberk Hanım Museum 80€
Taksim Hill Hotel  70 € 80 € 01 May Byzantine Secrets 90 €
Lion Hotel  60 € 70 € 01 May Old Town Mosques & Palaces 95 €
Innpera Hotel 55 € 65 €

26-27 April 2-day Ephesus Tour [ss: single supplement]

295 €/ss15€
All above rates are inclusive of Buffet Breakfast and VAT

1-2 May 2-day Cappadocia Tour [ss: single supplement]

280 €/ss 45 €
  30 April Gala Dinner Cruise  80 €
  Airport-Hotel Transfer one way ( up to 6 people) 90 €
    All above rates are inclusive of VAT

For tour details please download file

For Registration and Booking please fill in the form below, as soon as we receive your inquiry we will send you a proforma invoice with payment terms & cancellation conditions. You can pay by Mastercard or Visa Cards or bank transfer.


Additional Services

  • Airport-hotel transfer ow ( max.6 people) (90 EUR)
  • Hotel-airport transfer ( max.6 people) (90 EUR)
  • 7 September Ottoman Secrets (85 EUR)
  • 7 September Bosphorus Cruise and Sadberk Hanım Museum (80 EUR)
  • 11 September Byzantine Secrets (90 EUR)
  • 11 September Old Town Mosques & Palaces (95 EUR)
  • 6-7 September 2-day Ephesus Tour [ss: single supplement] (295 EUR)
  • 11-12 September 2-day Cappadocia Tour (280 EUR)
  • 10 September Gala Dinner Cruise (80 EUR)

Included Services

  • Attendance to sessions
  • Site visit Buyukada
  • two lunch
  • two coffee breaks

Excluded Costs

  • Accommodation
  • Flights


Event Program

1. Day Symposium Summary

The Symposium is dedicated to subjects relevant to water traditions, culture, and religions. This unique event aims to promote interactions, to motivate discussions and to encourage collaborations among the global community on water resources in the past, present, and future. Information about ancient technologies of water and sanitation in various civilizations, which enhances present sustainable practices and water management, is crucial to develop present and future technologies.

Please refer to IWA official site for further information




Barcelo Istanbul

The completely refurbished Barceló Istanbul***** hotel is located in the heart of the city, next to one of the most elegant districts in Istanbul, in Taksim Square. Surrounded by a wide variety of restaurants, shops and businesses, its location allows guests to be absorbed by the vibrant streets of the country’s historical, cultural and financial capital.


It has 270 spacious rooms and suites, which are carefully designed, with all conveniences and a unique atmosphere that provides maximum comfort during each stay. Its comfort and amenities provide guests with everything you could need for a perfect visit. Some of them include a private hammam

The facilities of the hotel are characterised by a modern and elegant style which, in addition, offers guests unique views of the city. It features a B-Heaven Roof Top Lounge, a large sun terrace with 2 hot tubs and a spectacular Wellness and Fitness Centre measuring 1,200 square metres, located on the eleventh floor. 

The hotel can also offer 7 multifunctional rooms with capacity for accommodating up to 600 people and the equipment necessary to successfully put on all types of meetings and events. 

The Barceló Istanbul, situated in the Beyoglu district, is the perfect spot for a business or leisure trip. Here, travellers become the protagonist of each of the activities offered by this beautiful city, famous for its mix of cultures, aromas, textures and colours. All this makes it one of the best hotels in the city of the Bosphorus.

Elite World Prestige

Elite World Prestige Hotel is a 4-star hotel situated in Istanbul’s exciting Taxim area. This luxurious hotel offers astonishing panoramic views from its relaxing terrace bar.

In Elite Hotel’s spacious breakfast hall, guests can start to the day off right with a delicious complimentary breakfast. Guests can also keep updated with work and check emails by taking advantage of Elite’s free Wi-Fi access. Plus, guests can relax and plan the day ahead in the comfort of the hotel’s air-conditioned, spacious rooms.

Elite World Prestige Hotel features a fully equipped fitness and health centre where guests can choose to enrol in a fitness programme and get full use of the latest fitness facilities. Following a good vigorous workout, guests can soothe their tired muscles in the hammam and the sauna, and enjoy a variety of other health facilities.

Unwind with a refreshing drink at Elite’s own Gardenia Bar and marvel at the spectacular views of the Bosphorus and the Golden Horn, the perfect place to relax and watch the sun go down.

Elite Hotel is within close range to Istanbul’s exclusive and exciting shopping district. It also offers excellent public transport links immediately outside the hotel, allowing guests to gain easy access the rest of Istanbul.

Taksim Hill

Luxurious architecture with modern lines, the Taxim Hill Hotel welcomes its guests with its stylish decoration and high quality service.

1 minute from İstiklal Caddesi, metro station and Atatürk Culture Center, 15 minutes from Lutfü Kırdar Congress Center, 21 km from Istanbul Atatürk Airport and 50 km from Sabiha Gökçen Airport.

With its fabulous location, historical structure and renovated design in the heart of Taksim, Taxim Hill Hotel is waiting for you to experience this extraordinary experience.

Lion Hotel

Lion Hotel is ocated in Taksim Talimhane, the center of Istanbul, offers all kinds of luxes we look for at the best prices. It is 80 meters from Taksim Square, 500 meters from Lutfi Kırdar Congress Center and 60 meters from the metro stop where we can easily reach the most popular shopping centers. and walking distance to the clubs.