Oliguria or hypouresis (both names from roots meaning not enough urine) is the low output of urine. In humans, it is clinically classified as an output more than 80 ml/day but less than 400ml/day.
The alternative is to take US Dollars with you, and then change your money in Colombia, but if you do want to take cash then it's probably easiest to just buy Colombian pesos in the UK and take them. The alternative is to rely on using your bank card to withdraw money in Colombia. There is a decent network of cash machines in Colombia and they take most UK bank cards so there shouldn't be a problem with this, but many people do prefer to take a pre-paid currency card instead.
Currency. Costa Ricaâs currency is the colon (CRC). The symbol for the colon is a c with two forward slashes (â¡) Bills are issued in the following denominations: â¡1,000, â¡2,000, â¡5,000, â¡10,000, â¡20,000 and â¡50,000 colon note. Each colorful bill features a unique design, highlighting local wildlife, an historical figure, and a Costa Rican ecosystem. The notes range in size from smaller to larger depending on denomination; coins are available in â¡5, â¡10, â¡25, â¡50, â¡100 and â¡500 colones.