1—- Visit Clock Tower in Konak square in the city centre,
2—- Eat kumru sandwich some where on the bay (Bostanli, Inciralti, Pasaport)
3—- Take a ferry from city centre to explore other side of the city. Karsiyaka and Bostanli
4—- Go to Kucukpark in Bornova to listen some live rock bands and experience student atmosphere… :)
5—- Watch the sunset and feel the warm winds towards your face at Izmir bay.
6—- Eat MIDYE( sea mussel-shell with rice) on the grasses of Kordon.
7—- visit Seljuk,Ephesus and Sirince and taste Sirince fruit wines.
8—- Visit “Kadifekale”, but do not forget your camera! The view is fantastic!
9—- Taste ice-cream in “Tatlıcı Mennan” in Kızlarağası
10—- Visit “Kızlarağası” and drink “dibek kahvesi” with a turkish delight.
11—- Check the second floor of “Kızlarağası”, there are many antique shops.
12—- Eat “boyoz” in the morning as a breakfast and also try to eat in the middle of the night in front of Bornova, Migros. But do not forget, you have to wait in a long queue to have it.
13—- Eat “gevrek”, it’s also known as “simit” in the other parts of Turkey. But the Izmir’s gevrek is a little bit diffirent. Try it with Izmir’s cheese, “tulum peyniri”.
14—- If it’s summer, try melon.
15—- Izmir has fresh vegetables and fruits. Find a market place and see the variety. Maybe you can cook something or maybe there is something you haven’t seen before…
16—- Walk from “Konak Square” to “Kemeraltı”, do not follow the crowded, find your own way! You can discover new streets. Kemeraltı is not just a bazaar, it’s history of Izmir. Between new fashion and old culture.. You can find a coffee shop which is older than 50years or a pair of fake converse which looks like totally similar with original one or a building where you can find antiques..
17—- Walk from “Konak Square” to “Varyant”. You can take a bus too, but there are lots of worth seeing old houses which you can discover on foot. In Varyant, there is a coffe shop, where you can take break and enjoy the Izmir view.
18—- Enjoy the sunset in “Tarihi Asansör”. Also you can have your dinner there, it’s also a restaurant.
19—- Taste “Izmir Kofte”.
20—- Next to “Güzelbahçe Balık Hali” there is a small kiosk where you can eat fish and bread, you should be there before 19.00 if you want to try. It’s near seaside, so in the winter a little bit cold. Enjoy your food with a peaceful atmosphere.
21—- Just sit on the bench and watch beautiful and colorful people of Izmir. Meet with your friends in front of Sevinc Patisserie. Walk trough Kıbris Sehitleri Street.
22—- Go to Teleferik, Balcova. It is a cable car takes you up on a hill where u can have a picnic there and breath fresh air. (not in use since couple of years.)
23—- According to history, one of the first spa and health centre in age is in Agamemnon, Izmir. Balcova thermal hotel is a good choice for spa&wellness, health, thermal spring and cure.
24—- You can taste and buy some dry figs, Turkish delights, olives, olive oils as souvenir.
25—- You can enjoy sitting on the grass springs and summers and have your drinks while you are chatting and singing with your friends or love.
26—- Go to Alaçatı at ‘çeşme’ district for windsurf…
27—- u can go to ‘forum bornova’ for shoppıng or eating somethıng..
28—- ıf u like to rock musıc u must to vısıt ”küçükpark’ ın bornova dıstrıct..
29—- Visit Pergamon in Bergama which is an important greek city during hellenistic period.
http://en.wikipedia.org/wiki/Pergamum
30—- Attend to CS Izmir meetings, felow csers are awesome in this city. It is a great way to peaceful atmosphere of the city. :)
31—- go to karsıyaka to visit old house.for exp.Zübeyde Hanım Köşkü.eat or drink somethings.
http://wowturkey.com/forum/viewtopic.php?t=7269
32—- go to altınpark cafe restaurant from örnekköy view all izmir .dont forget to take camera.
33—- Go to Patlican restaurant in Inciralti. Have an amazing Turkish Breakfast. Then have a tour along seawalk. 
34—- Visit planetarium in Cigli (it is the first planetarium of Turkey as far as I know, you can check the website http://www.gezegenevi.com/tr/ (I did not have the chance to go yet, if anyone interested, we can plan something, they have also programs for groups)
35—- Cycle to Izmir Wildlife park(if you don`t have a bike, you can rent in Bostanli)
36—- Take your drink and go to “Kordon”. Start thinking how you are gonna miss this city : ) 
37—- take the car ferry from inciraltı to bostanli to see all izmir gulf area.
now far away from the city centers
38—- visit seven sleepers cave near ephesus and mother mary’s house ..eat gozleme in tents
39—- visit Karaburun and Mordogan .karaburun has wonderful beaches for swimmers and scuba lovers..
40—- In Mordogan visit the famous rock and cave called Ayı Balığı ( sea dog ).
41—- Visit Urla to see Tanju Okan’s statue and port area.
42—- Visit Sardunaki in karsiyaka area (across karsiyaka port) for sea products and crete music and show.
43—- listen live pop and rock music in Bios , Kybele and Mavi in Alsancak.
44—- In Spring and Autumn visit Odemis and Tire area.
and for the last and The best one
45—- MEET WITH SOMEONE IN FRONT OF SEVINC PASTANESI :) 
46—- drive to Cicekli and Yakakoy to enjoy picnic or breakfast/lunch at restaurants in nature.
47—- go to Sahilevleri for a “raki-balik” (raki-fish). enjoy colorful tangerine plantations when it is the season.
48—- i would try ice-cream at Bornova-Elit, home-made baklava with almond at Bornova-Evim, “tahinli pide” (turkish pizza with tahini) at Dinc Pide in Bornova, turkish dish foods in Bornova at Sevim Lokantasi or Baki Usta, and doner kebap at Can or Ali Paşa in Kemeralti.
49—- visit Kimiz Çiftliği in Kemalpaşa, and surroundings like Yukari Kizilca.
50—- Visiting Space Camp Turkey in Aegean Free Zone Area-Gaziemir.
51—- go to “Tarihi Havagazi Fabrikasi”, or shortly havagazi, to enjoy an evening with live music on the grass in open-air when it is the season, and one evening for latin dance inside the covered area.
52—- join cycling tours in the city: meet on thursdays at 8 p.m in front of Goztepe Pier, and Karsiyaka Pier on tuesdays. double-check with izmirbisiklet.org or izmirbisiklet.com.
53—- eating çöp şiş (meat which is in shape of small cubes, skewed to thin wood stick, and grilled) at Topçu’nun Yeri Restaurant in Pasaport.
54—- walk in “kıbrıs şehitleri” road in Alsancak and choose a place for eating, drinking, dancing…
55—- if it’s summer you can find lots of open air rock festival (all of them are near of beautiful seaside) you can join with your tent
56—- visit “agora ancient city” 
57—- Catch a sunny and non windy day on winter time, on january or february, then reach to ilica beach - cesme, enjoy the white sand, blue sea and swim in the warm water.
58—- Go to Turkish Hamam around Mithatpasa.
59—- Walk in ” Sevgili yolu ” and enjoy eating a Kumpir menu, where a lot of shops are selling it, they all sell it for the same price, so just choose a one and Afiyet olsun :)
60—- Visit A Musum located just 200 meter to Alsancak port, as far as I remember, it was an old house that “ATATURK” lived in, and it is extremely amazaing !
61—- for man = falling in love with a girl from izmir
62—- for woman = falling in love with a boy from izmir
63—- visit Etnography Museum at Varyant.
64—- visit Archaeological Museum at Varyant.
65—- have kofte (meat balls) at Pinarbasi/Bornova.
66—- go to Izmir Yaris Pisti (racing track) at Pinarbasi if interested in motor sports (http://izmiryarispisti.net/).
67—- You can go watching horse racing at Hipodrom, Sirinyer neighborhood.
68—- please follow that post about blues festival, maybe we can go there all together..
it is so much fun to listen to blues while sipping the cold beer!! its recommended..
so number 68 = http://www.efesblues.com/ in izmir…
69—- Eat kokorec from Kadri Usta’s minivan in Karsiyaka ..You might get sick in the end, but it is worth to take the risk!:)
70—- go swimming in March when you are so encoureged :))
71—- smile in izmir ;))
72—- Taste and buy as presents Turkisih Delight and dry figs with chocolate from Taris Coop. / Tuba Kuruyemis.
73—- Visit the biggest Mevlana Statue of Turkey maybe World’s in Buca. They have a laser show at nights. Some old people sing songs and u can drink your tea and also read advices of MEVLANA. (Rumi)
74. Watching or maybe visiting The Ataturk Mask which is one of the biggest masks in the world in Yesildere crossroad.
75. Attending a bike tour with CS Izmir Bike group. 
76. Meet with Bora and have a couchsurfing experience with him .:)
77. diving into the aegean sea!
78. watching one of the national windsurfing competitions.
79. watching one of the international windsurfing competitions.
80. participating one of these windsurfing competitions.
81. Eating Tatar Boreka (Pancakes) Bayramyeri, Esrefpasa and have a tour in the tiny street of Esrefpasa. Taking photos of this interesting area.

82. Tracking to Manastir Mountain in Balcova and having an amazing picnic there. 
83) You can visit the The Submarine Museum in İnciraltı 

- Ref: CouchSurfing Izmir Group