Dear registered participants of the IV VISCACHA Meeting, as already informed in the first announcement, the IV VISCACHA meeting will take place at Universidade Federal do ABC (UFABC), Santo André, Brazil from 6-11 August 2023: http://www.astro.iag.usp.br/~viscacha/ivmeeting.html The complete address of the conference venue is: Avenida dos Estados, 5001 Centro de Ciências Naturais e Humanas (CCNH) Universidade Federal do ABC (UFABC) CEP 09210-580 Santo André, São Paulo – Brasil You can find directions, how to get to the campus here: https://www.ufabc.edu.br/como-chegar/como-chegar-no-campus-santo-andre The programme of the meeting can be found here (to be updated): http://www.astro.iag.usp.br/~viscacha/ivmee_programme.html Some of you stated in the registration form, that they have difficulties to pay the registration fee, and will contact the us by e-mail. Please, do so as soon as possible. We cannot guarantee waivers for participants who do not present a talk. For accommodation, we made an agreement with the hotel Plaza Mayor: http://hotelplazamayor.com.br They offered us the following discounted room rates (with breakfast included): Single apartment: R$ 209,00+5%ISS Double: R$ 229,00+5%ISS Staying in a double room is much cheaper per person than in a single room, and most of you have agreed to share a room. We would like to thank you for that! It will help a lot to accomodate more participants. Apart from the breakfast buffet, they offer wireless internet, business center, free use of their leisure area, gym and games room. It is about a 30 minutes walk from the UFABC, but we will most probably be able to use a university van to bring us there in the morning and back in the late afternoon*. The Plaza Mayor is close to the city centre and to the Rua das Figueiras, a street with a share of bars, where we can have diner and continue discussions started during the day. We strongly recommend staying in this hotel, which will make it easier to get to the UFABC and back together, and interact outside conference hours. Please, inform us as soon as possible, if you do not want to stay in the Plaza Mayor, so we can cancel the pre-reservations we made without extra cost. The easiest way is by filling out the second google form (link at the end of this announcement). *In order to book the van, I have to inform the document information of the passengers: In case of brazilians, RG, issuing body, and expiry date; For non-brazilians, nationality, passport number, and expiry date. Please send this information to me as soon as possible. The easiest way is by filling out the second google form (link at the end of this announcement). For lunch, there are a few options in the vicinity of the UFABC, among them the student restaurant on campus, which is one of the cheapest options. We are organising a trip to a nice part of town called Paranapiacaba on Thursday afternoon. The cost of this trip will be divided among those who participate. It will probably not be very high. At the end of the same day we will have the conference diner, in a restaurant to be defined. In order to organise the most urgent points (hotel and van reservation), I created a second google form. Please fill it out as soon as possible. https://forms.gle/sUmKrmXTkzpJsCRX9 Please contact us if you have any questions. Looking forward to seeing you in Santo André! Pieter, on behalf of the organising committee.